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/codingkeys/barcode.json

@@ -1 +1 @@
-{"sections":[],"hierarchy":{"paths":[["doc:\/\/DiscogsService\/documentation\/DiscogsService","doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components","doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components\/Schemas","doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components\/Schemas\/SearchResult","doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components\/Schemas\/SearchResult\/CodingKeys"]]},"metadata":{"roleHeading":"Case","symbolKind":"case","externalID":"s:14DiscogsService10ComponentsO7SchemasO12SearchResultV10CodingKeysO7barcodeyA2ImF","modules":[{"name":"DiscogsService"}],"role":"symbol","fragments":[{"kind":"keyword","text":"case"},{"kind":"text","text":" "},{"kind":"identifier","text":"barcode"}],"title":"Components.Schemas.SearchResult.CodingKeys.barcode"},"kind":"symbol","primaryContentSections":[{"declarations":[{"languages":["swift"],"tokens":[{"text":"case","kind":"keyword"},{"text":" ","kind":"text"},{"text":"barcode","kind":"identifier"}],"platforms":["macOS"]}],"kind":"declarations"}],"variants":[{"paths":["\/documentation\/discogsservice\/components\/schemas\/searchresult\/codingkeys\/barcode"],"traits":[{"interfaceLanguage":"swift"}]}],"schemaVersion":{"minor":3,"patch":0,"major":0},"identifier":{"url":"doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components\/Schemas\/SearchResult\/CodingKeys\/barcode","interfaceLanguage":"swift"},"references":{"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"},"doc://DiscogsService/documentation/DiscogsService/Components/Schemas/SearchResult/CodingKeys/barcode":{"url":"\/documentation\/discogsservice\/components\/schemas\/searchresult\/codingkeys\/barcode","identifier":"doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components\/Schemas\/SearchResult\/CodingKeys\/barcode","role":"symbol","kind":"symbol","title":"Components.Schemas.SearchResult.CodingKeys.barcode","abstract":[],"fragments":[{"text":"case","kind":"keyword"},{"text":" ","kind":"text"},{"text":"barcode","kind":"identifier"}],"type":"topic"},"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":{"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/Components/Schemas/SearchResult/CodingKeys":{"identifier":"doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components\/Schemas\/SearchResult\/CodingKeys","url":"\/documentation\/discogsservice\/components\/schemas\/searchresult\/codingkeys","role":"symbol","navigatorTitle":[{"text":"CodingKeys","kind":"identifier"}],"abstract":[],"title":"Components.Schemas.SearchResult.CodingKeys","type":"topic","kind":"symbol","fragments":[{"text":"enum","kind":"keyword"},{"text":" ","kind":"text"},{"text":"CodingKeys","kind":"identifier"}]},"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"}}}
+{"schemaVersion":{"minor":3,"patch":0,"major":0},"metadata":{"fragments":[{"kind":"keyword","text":"case"},{"kind":"text","text":" "},{"kind":"identifier","text":"barcode"}],"title":"Components.Schemas.SearchResult.CodingKeys.barcode","role":"symbol","externalID":"s:14DiscogsService10ComponentsO7SchemasO12SearchResultV10CodingKeysO7barcodeyA2ImF","roleHeading":"Case","modules":[{"name":"DiscogsService"}],"symbolKind":"case"},"identifier":{"interfaceLanguage":"swift","url":"doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components\/Schemas\/SearchResult\/CodingKeys\/barcode"},"sections":[],"variants":[{"traits":[{"interfaceLanguage":"swift"}],"paths":["\/documentation\/discogsservice\/components\/schemas\/searchresult\/codingkeys\/barcode"]}],"hierarchy":{"paths":[["doc:\/\/DiscogsService\/documentation\/DiscogsService","doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components","doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components\/Schemas","doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components\/Schemas\/SearchResult","doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components\/Schemas\/SearchResult\/CodingKeys"]]},"primaryContentSections":[{"kind":"declarations","declarations":[{"tokens":[{"kind":"keyword","text":"case"},{"kind":"text","text":" "},{"kind":"identifier","text":"barcode"}],"languages":["swift"],"platforms":["macOS"]}]}],"kind":"symbol","references":{"doc://DiscogsService/documentation/DiscogsService/Components/Schemas/SearchResult/CodingKeys/barcode":{"url":"\/documentation\/discogsservice\/components\/schemas\/searchresult\/codingkeys\/barcode","role":"symbol","fragments":[{"text":"case","kind":"keyword"},{"text":" ","kind":"text"},{"text":"barcode","kind":"identifier"}],"title":"Components.Schemas.SearchResult.CodingKeys.barcode","identifier":"doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components\/Schemas\/SearchResult\/CodingKeys\/barcode","kind":"symbol","abstract":[],"type":"topic"},"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":{"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/Schemas/SearchResult/CodingKeys":{"url":"\/documentation\/discogsservice\/components\/schemas\/searchresult\/codingkeys","role":"symbol","fragments":[{"text":"enum","kind":"keyword"},{"text":" ","kind":"text"},{"text":"CodingKeys","kind":"identifier"}],"title":"Components.Schemas.SearchResult.CodingKeys","navigatorTitle":[{"text":"CodingKeys","kind":"identifier"}],"identifier":"doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components\/Schemas\/SearchResult\/CodingKeys","kind":"symbol","abstract":[],"type":"topic"},"doc://DiscogsService/documentation/DiscogsService":{"type":"topic","title":"DiscogsService","url":"\/documentation\/discogsservice","role":"collection","abstract":[],"kind":"symbol","identifier":"doc:\/\/DiscogsService\/documentation\/DiscogsService"},"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"}}}