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/artistid/codingkeys/id.json

@@ -1 +1 @@
-{"primaryContentSections":[{"declarations":[{"platforms":["macOS"],"tokens":[{"kind":"keyword","text":"case"},{"kind":"text","text":" "},{"kind":"identifier","text":"id"}],"languages":["swift"]}],"kind":"declarations"}],"sections":[],"kind":"symbol","schemaVersion":{"patch":0,"major":0,"minor":3},"identifier":{"interfaceLanguage":"swift","url":"doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components\/Schemas\/ArtistId\/CodingKeys\/id"},"metadata":{"role":"symbol","externalID":"s:14DiscogsService10ComponentsO7SchemasO8ArtistIdV10CodingKeysO2idyA2ImF","roleHeading":"Case","symbolKind":"case","title":"Components.Schemas.ArtistId.CodingKeys.id","modules":[{"name":"DiscogsService"}],"fragments":[{"kind":"keyword","text":"case"},{"kind":"text","text":" "},{"kind":"identifier","text":"id"}]},"variants":[{"paths":["\/documentation\/discogsservice\/components\/schemas\/artistid\/codingkeys\/id"],"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\/ArtistId","doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components\/Schemas\/ArtistId\/CodingKeys"]]},"references":{"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/ArtistId/CodingKeys":{"role":"symbol","abstract":[],"type":"topic","kind":"symbol","url":"\/documentation\/discogsservice\/components\/schemas\/artistid\/codingkeys","fragments":[{"text":"enum","kind":"keyword"},{"text":" ","kind":"text"},{"text":"CodingKeys","kind":"identifier"}],"identifier":"doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components\/Schemas\/ArtistId\/CodingKeys","navigatorTitle":[{"text":"CodingKeys","kind":"identifier"}],"title":"Components.Schemas.ArtistId.CodingKeys"},"doc://DiscogsService/documentation/DiscogsService/Components/Schemas/ArtistId":{"role":"symbol","abstract":[{"text":"A type that references an artist.","type":"text"}],"type":"topic","kind":"symbol","url":"\/documentation\/discogsservice\/components\/schemas\/artistid","fragments":[{"text":"struct","kind":"keyword"},{"text":" ","kind":"text"},{"text":"ArtistId","kind":"identifier"}],"identifier":"doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components\/Schemas\/ArtistId","navigatorTitle":[{"text":"ArtistId","kind":"identifier"}],"title":"Components.Schemas.ArtistId"},"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"},"doc://DiscogsService/documentation/DiscogsService/Components/Schemas/ArtistId/CodingKeys/id":{"abstract":[],"url":"\/documentation\/discogsservice\/components\/schemas\/artistid\/codingkeys\/id","fragments":[{"text":"case","kind":"keyword"},{"text":" ","kind":"text"},{"text":"id","kind":"identifier"}],"identifier":"doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components\/Schemas\/ArtistId\/CodingKeys\/id","kind":"symbol","role":"symbol","type":"topic","title":"Components.Schemas.ArtistId.CodingKeys.id"}}}
+{"variants":[{"traits":[{"interfaceLanguage":"swift"}],"paths":["\/documentation\/discogsservice\/components\/schemas\/artistid\/codingkeys\/id"]}],"primaryContentSections":[{"declarations":[{"platforms":["macOS"],"languages":["swift"],"tokens":[{"kind":"keyword","text":"case"},{"kind":"text","text":" "},{"kind":"identifier","text":"id"}]}],"kind":"declarations"}],"metadata":{"fragments":[{"text":"case","kind":"keyword"},{"text":" ","kind":"text"},{"text":"id","kind":"identifier"}],"title":"Components.Schemas.ArtistId.CodingKeys.id","role":"symbol","externalID":"s:14DiscogsService10ComponentsO7SchemasO8ArtistIdV10CodingKeysO2idyA2ImF","roleHeading":"Case","modules":[{"name":"DiscogsService"}],"symbolKind":"case"},"hierarchy":{"paths":[["doc:\/\/DiscogsService\/documentation\/DiscogsService","doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components","doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components\/Schemas","doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components\/Schemas\/ArtistId","doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components\/Schemas\/ArtistId\/CodingKeys"]]},"schemaVersion":{"minor":3,"patch":0,"major":0},"kind":"symbol","identifier":{"url":"doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components\/Schemas\/ArtistId\/CodingKeys\/id","interfaceLanguage":"swift"},"sections":[],"references":{"doc://DiscogsService/documentation/DiscogsService/Components/Schemas/ArtistId/CodingKeys":{"url":"\/documentation\/discogsservice\/components\/schemas\/artistid\/codingkeys","role":"symbol","fragments":[{"text":"enum","kind":"keyword"},{"kind":"text","text":" "},{"text":"CodingKeys","kind":"identifier"}],"title":"Components.Schemas.ArtistId.CodingKeys","navigatorTitle":[{"text":"CodingKeys","kind":"identifier"}],"identifier":"doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components\/Schemas\/ArtistId\/CodingKeys","abstract":[],"kind":"symbol","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/ArtistId/CodingKeys/id":{"fragments":[{"kind":"keyword","text":"case"},{"kind":"text","text":" "},{"kind":"identifier","text":"id"}],"type":"topic","title":"Components.Schemas.ArtistId.CodingKeys.id","url":"\/documentation\/discogsservice\/components\/schemas\/artistid\/codingkeys\/id","role":"symbol","abstract":[],"kind":"symbol","identifier":"doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components\/Schemas\/ArtistId\/CodingKeys\/id"},"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/ArtistId":{"url":"\/documentation\/discogsservice\/components\/schemas\/artistid","role":"symbol","fragments":[{"text":"struct","kind":"keyword"},{"text":" ","kind":"text"},{"text":"ArtistId","kind":"identifier"}],"title":"Components.Schemas.ArtistId","navigatorTitle":[{"text":"ArtistId","kind":"identifier"}],"identifier":"doc:\/\/DiscogsService\/documentation\/DiscogsService\/Components\/Schemas\/ArtistId","abstract":[{"text":"A type that references an artist.","type":"text"}],"kind":"symbol","type":"topic"}}}