Implemented the missing Database endpoints (#8)

This PR contains the work done to declare the missing, non-GET endpoints of the *Database* section in the [Discogs API documentation](https://www.discogs.com/developers#page:database) into the `OpenAPI` specification document.

Furthermore, documentation extensions have been defined for the `APIProtocol` and `Client` types in the `DocC` documentation catalog to match the categories of these endpoint calls to the categories in the Discogs documentation.

Reviewed-on: #8
Co-authored-by: Javier Cicchelli <javier@rock-n-code.com>
Co-committed-by: Javier Cicchelli <javier@rock-n-code.com>

docs/data/documentation/discogsservice/components/schemas/searchresult/label.json

@@ -1 +1 @@
-{"hierarchy":{"paths":[["doc:\/\/DiscogsService\/documentation\/DiscogsService","doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components","doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components\/Schemas","doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components\/Schemas\/SearchResult"]]},"kind":"symbol","sections":[],"schemaVersion":{"major":0,"minor":3,"patch":0},"identifier":{"interfaceLanguage":"swift","url":"doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components\/Schemas\/SearchResult\/label"},"primaryContentSections":[{"declarations":[{"tokens":[{"kind":"keyword","text":"var"},{"kind":"text","text":" "},{"kind":"identifier","text":"label"},{"kind":"text","text":": ["},{"kind":"typeIdentifier","preciseIdentifier":"s:SS","text":"String"},{"kind":"text","text":"]"}],"platforms":["macOS"],"languages":["swift"]}],"kind":"declarations"},{"content":[{"text":"Discussion","level":2,"type":"heading","anchor":"discussion"},{"name":"Remark","content":[{"inlineContent":[{"type":"text","text":"Generated from "},{"type":"codeVoice","code":"#\/components\/schemas\/SearchResult\/label"},{"type":"text","text":"."}],"type":"paragraph"}],"type":"aside","style":"note"}],"kind":"content"}],"variants":[{"traits":[{"interfaceLanguage":"swift"}],"paths":["\/documentation\/discogsservice\/components\/schemas\/searchresult\/label"]}],"abstract":[{"text":"A list of labels associated with a result.","type":"text"}],"metadata":{"fragments":[{"kind":"keyword","text":"var"},{"kind":"text","text":" "},{"kind":"identifier","text":"label"},{"kind":"text","text":": ["},{"kind":"typeIdentifier","preciseIdentifier":"s:SS","text":"String"},{"kind":"text","text":"]"}],"modules":[{"name":"DiscogsService"}],"externalID":"s:14DiscogsService10ComponentsO7SchemasO12SearchResultV5labelSaySSGvp","role":"symbol","symbolKind":"property","roleHeading":"Instance Property","title":"label"},"references":{"doc://DiscogsService/documentation/DiscogsService/Components/Schemas/SearchResult":{"abstract":[{"type":"text","text":"A type that represents a search result."}],"role":"symbol","navigatorTitle":[{"text":"SearchResult","kind":"identifier"}],"fragments":[{"text":"struct","kind":"keyword"},{"text":" ","kind":"text"},{"text":"SearchResult","kind":"identifier"}],"identifier":"doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components\/Schemas\/SearchResult","type":"topic","kind":"symbol","url":"\/documentation\/discogsservice\/components\/schemas\/searchresult","title":"Components.Schemas.SearchResult"},"doc://DiscogsService/documentation/DiscogsService/Components/Schemas/SearchResult/label":{"role":"symbol","fragments":[{"text":"var","kind":"keyword"},{"kind":"text","text":" "},{"text":"label","kind":"identifier"},{"kind":"text","text":": ["},{"text":"String","kind":"typeIdentifier","preciseIdentifier":"s:SS"},{"kind":"text","text":"]"}],"kind":"symbol","title":"label","type":"topic","url":"\/documentation\/discogsservice\/components\/schemas\/searchresult\/label","abstract":[{"text":"A list of labels associated with a result.","type":"text"}],"identifier":"doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components\/Schemas\/SearchResult\/label"},"doc://DiscogsService/documentation/DiscogsService/Components":{"url":"\/documentation\/discogsservice\/components","title":"Components","role":"symbol","abstract":[{"type":"text","text":"Types generated from the components section of the OpenAPI document."}],"type":"topic","fragments":[{"kind":"keyword","text":"enum"},{"text":" ","kind":"text"},{"text":"Components","kind":"identifier"}],"identifier":"doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components","navigatorTitle":[{"kind":"identifier","text":"Components"}],"kind":"symbol"},"doc://DiscogsService/documentation/DiscogsService":{"title":"DiscogsService","url":"\/documentation\/discogsservice","type":"topic","role":"collection","abstract":[],"kind":"symbol","identifier":"doc:\/\/DiscogsService\/documentation\/DiscogsService"},"doc://DiscogsService/documentation/DiscogsService/Components/Schemas":{"url":"\/documentation\/discogsservice\/components\/schemas","identifier":"doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components\/Schemas","role":"symbol","navigatorTitle":[{"kind":"identifier","text":"Schemas"}],"kind":"symbol","title":"Components.Schemas","abstract":[{"type":"text","text":"Types generated from the "},{"type":"codeVoice","code":"#\/components\/schemas"},{"type":"text","text":" section of the OpenAPI document."}],"fragments":[{"kind":"keyword","text":"enum"},{"kind":"text","text":" "},{"kind":"identifier","text":"Schemas"}],"type":"topic"}}}
+{"schemaVersion":{"major":0,"minor":3,"patch":0},"abstract":[{"type":"text","text":"A list of labels associated with a result."}],"metadata":{"title":"label","modules":[{"name":"DiscogsService"}],"symbolKind":"property","externalID":"s:14DiscogsService10ComponentsO7SchemasO12SearchResultV5labelSaySSGvp","role":"symbol","roleHeading":"Instance Property","fragments":[{"kind":"keyword","text":"var"},{"kind":"text","text":" "},{"kind":"identifier","text":"label"},{"kind":"text","text":": ["},{"kind":"typeIdentifier","preciseIdentifier":"s:SS","text":"String"},{"kind":"text","text":"]"}]},"identifier":{"url":"doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components\/Schemas\/SearchResult\/label","interfaceLanguage":"swift"},"sections":[],"variants":[{"paths":["\/documentation\/discogsservice\/components\/schemas\/searchresult\/label"],"traits":[{"interfaceLanguage":"swift"}]}],"hierarchy":{"paths":[["doc:\/\/DiscogsService\/documentation\/DiscogsService","doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components","doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components\/Schemas","doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components\/Schemas\/SearchResult"]]},"primaryContentSections":[{"kind":"declarations","declarations":[{"tokens":[{"kind":"keyword","text":"var"},{"kind":"text","text":" "},{"kind":"identifier","text":"label"},{"kind":"text","text":": ["},{"kind":"typeIdentifier","preciseIdentifier":"s:SS","text":"String"},{"kind":"text","text":"]"}],"languages":["swift"],"platforms":["macOS"]}]},{"kind":"content","content":[{"type":"heading","level":2,"text":"Discussion","anchor":"discussion"},{"type":"aside","content":[{"type":"paragraph","inlineContent":[{"text":"Generated from ","type":"text"},{"type":"codeVoice","code":"#\/components\/schemas\/SearchResult\/label"},{"text":".","type":"text"}]}],"name":"Remark","style":"note"}]}],"kind":"symbol","references":{"doc://DiscogsService/documentation/DiscogsService/Components/Schemas/SearchResult":{"url":"\/documentation\/discogsservice\/components\/schemas\/searchresult","role":"symbol","fragments":[{"text":"struct","kind":"keyword"},{"text":" ","kind":"text"},{"text":"SearchResult","kind":"identifier"}],"title":"Components.Schemas.SearchResult","navigatorTitle":[{"text":"SearchResult","kind":"identifier"}],"identifier":"doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components\/Schemas\/SearchResult","kind":"symbol","abstract":[{"text":"A type that represents a search result.","type":"text"}],"type":"topic"},"doc://DiscogsService/documentation/DiscogsService/Components/Schemas":{"type":"topic","title":"Components.Schemas","identifier":"doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components\/Schemas","abstract":[{"type":"text","text":"Types generated from the "},{"type":"codeVoice","code":"#\/components\/schemas"},{"type":"text","text":" section of the OpenAPI document."}],"navigatorTitle":[{"text":"Schemas","kind":"identifier"}],"kind":"symbol","url":"\/documentation\/discogsservice\/components\/schemas","role":"symbol","fragments":[{"text":"enum","kind":"keyword"},{"text":" ","kind":"text"},{"text":"Schemas","kind":"identifier"}]},"doc://DiscogsService/documentation/DiscogsService/Components":{"type":"topic","role":"symbol","kind":"symbol","fragments":[{"text":"enum","kind":"keyword"},{"text":" ","kind":"text"},{"text":"Components","kind":"identifier"}],"navigatorTitle":[{"text":"Components","kind":"identifier"}],"title":"Components","url":"\/documentation\/discogsservice\/components","identifier":"doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components","abstract":[{"text":"Types generated from the components section of the OpenAPI document.","type":"text"}]},"doc://DiscogsService/documentation/DiscogsService/Components/Schemas/SearchResult/label":{"url":"\/documentation\/discogsservice\/components\/schemas\/searchresult\/label","role":"symbol","fragments":[{"kind":"keyword","text":"var"},{"kind":"text","text":" "},{"kind":"identifier","text":"label"},{"kind":"text","text":": ["},{"kind":"typeIdentifier","text":"String","preciseIdentifier":"s:SS"},{"kind":"text","text":"]"}],"title":"label","identifier":"doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components\/Schemas\/SearchResult\/label","abstract":[{"type":"text","text":"A list of labels associated with a result."}],"kind":"symbol","type":"topic"},"doc://DiscogsService/documentation/DiscogsService":{"type":"topic","title":"DiscogsService","url":"\/documentation\/discogsservice","role":"collection","abstract":[],"kind":"symbol","identifier":"doc:\/\/DiscogsService\/documentation\/DiscogsService"}}}