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/labelrelease/codingkeys/title.json

@@ -1 +1 @@
-{"primaryContentSections":[{"kind":"declarations","declarations":[{"tokens":[{"text":"case","kind":"keyword"},{"text":" ","kind":"text"},{"text":"title","kind":"identifier"}],"platforms":["macOS"],"languages":["swift"]}]}],"schemaVersion":{"patch":0,"minor":3,"major":0},"sections":[],"kind":"symbol","identifier":{"interfaceLanguage":"swift","url":"doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components\/Schemas\/LabelRelease\/CodingKeys\/title"},"metadata":{"role":"symbol","externalID":"s:14DiscogsService10ComponentsO7SchemasO12LabelReleaseV10CodingKeysO5titleyA2ImF","roleHeading":"Case","title":"Components.Schemas.LabelRelease.CodingKeys.title","symbolKind":"case","modules":[{"name":"DiscogsService"}],"fragments":[{"kind":"keyword","text":"case"},{"kind":"text","text":" "},{"kind":"identifier","text":"title"}]},"variants":[{"paths":["\/documentation\/discogsservice\/components\/schemas\/labelrelease\/codingkeys\/title"],"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\/LabelRelease","doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components\/Schemas\/LabelRelease\/CodingKeys"]]},"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":{"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/LabelRelease/CodingKeys":{"kind":"symbol","role":"symbol","navigatorTitle":[{"kind":"identifier","text":"CodingKeys"}],"identifier":"doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components\/Schemas\/LabelRelease\/CodingKeys","fragments":[{"kind":"keyword","text":"enum"},{"kind":"text","text":" "},{"kind":"identifier","text":"CodingKeys"}],"type":"topic","url":"\/documentation\/discogsservice\/components\/schemas\/labelrelease\/codingkeys","title":"Components.Schemas.LabelRelease.CodingKeys","abstract":[]},"doc://DiscogsService/documentation/DiscogsService/Components/Schemas/LabelRelease/CodingKeys/title":{"type":"topic","url":"\/documentation\/discogsservice\/components\/schemas\/labelrelease\/codingkeys\/title","abstract":[],"title":"Components.Schemas.LabelRelease.CodingKeys.title","role":"symbol","fragments":[{"text":"case","kind":"keyword"},{"text":" ","kind":"text"},{"text":"title","kind":"identifier"}],"kind":"symbol","identifier":"doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components\/Schemas\/LabelRelease\/CodingKeys\/title"},"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/LabelRelease":{"title":"Components.Schemas.LabelRelease","fragments":[{"text":"struct","kind":"keyword"},{"text":" ","kind":"text"},{"text":"LabelRelease","kind":"identifier"}],"url":"\/documentation\/discogsservice\/components\/schemas\/labelrelease","type":"topic","role":"symbol","navigatorTitle":[{"text":"LabelRelease","kind":"identifier"}],"kind":"symbol","abstract":[{"type":"text","text":"A type that represents a release of a label."}],"identifier":"doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components\/Schemas\/LabelRelease"}}}
+{"sections":[],"schemaVersion":{"minor":3,"patch":0,"major":0},"hierarchy":{"paths":[["doc:\/\/DiscogsService\/documentation\/DiscogsService","doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components","doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components\/Schemas","doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components\/Schemas\/LabelRelease","doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components\/Schemas\/LabelRelease\/CodingKeys"]]},"primaryContentSections":[{"declarations":[{"platforms":["macOS"],"languages":["swift"],"tokens":[{"kind":"keyword","text":"case"},{"kind":"text","text":" "},{"kind":"identifier","text":"title"}]}],"kind":"declarations"}],"identifier":{"url":"doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components\/Schemas\/LabelRelease\/CodingKeys\/title","interfaceLanguage":"swift"},"kind":"symbol","metadata":{"role":"symbol","fragments":[{"kind":"keyword","text":"case"},{"kind":"text","text":" "},{"kind":"identifier","text":"title"}],"externalID":"s:14DiscogsService10ComponentsO7SchemasO12LabelReleaseV10CodingKeysO5titleyA2ImF","modules":[{"name":"DiscogsService"}],"title":"Components.Schemas.LabelRelease.CodingKeys.title","symbolKind":"case","roleHeading":"Case"},"variants":[{"traits":[{"interfaceLanguage":"swift"}],"paths":["\/documentation\/discogsservice\/components\/schemas\/labelrelease\/codingkeys\/title"]}],"references":{"doc://DiscogsService/documentation/DiscogsService/Components/Schemas/LabelRelease/CodingKeys/title":{"role":"symbol","identifier":"doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components\/Schemas\/LabelRelease\/CodingKeys\/title","title":"Components.Schemas.LabelRelease.CodingKeys.title","type":"topic","abstract":[],"fragments":[{"kind":"keyword","text":"case"},{"kind":"text","text":" "},{"kind":"identifier","text":"title"}],"url":"\/documentation\/discogsservice\/components\/schemas\/labelrelease\/codingkeys\/title","kind":"symbol"},"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":{"type":"topic","title":"DiscogsService","url":"\/documentation\/discogsservice","role":"collection","abstract":[],"kind":"symbol","identifier":"doc:\/\/DiscogsService\/documentation\/DiscogsService"},"doc://DiscogsService/documentation/DiscogsService/Components/Schemas/LabelRelease":{"abstract":[{"text":"A type that represents a release of a label.","type":"text"}],"fragments":[{"kind":"keyword","text":"struct"},{"kind":"text","text":" "},{"kind":"identifier","text":"LabelRelease"}],"title":"Components.Schemas.LabelRelease","type":"topic","kind":"symbol","url":"\/documentation\/discogsservice\/components\/schemas\/labelrelease","role":"symbol","navigatorTitle":[{"kind":"identifier","text":"LabelRelease"}],"identifier":"doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components\/Schemas\/LabelRelease"},"doc://DiscogsService/documentation/DiscogsService/Components/Schemas/LabelRelease/CodingKeys":{"type":"topic","title":"Components.Schemas.LabelRelease.CodingKeys","identifier":"doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components\/Schemas\/LabelRelease\/CodingKeys","abstract":[],"navigatorTitle":[{"kind":"identifier","text":"CodingKeys"}],"kind":"symbol","url":"\/documentation\/discogsservice\/components\/schemas\/labelrelease\/codingkeys","role":"symbol","fragments":[{"kind":"keyword","text":"enum"},{"kind":"text","text":" "},{"kind":"identifier","text":"CodingKeys"}]}}}