Use ArtistCredit, cleanup old cruft and use MB recording cache

[mayhem]

This rather large PR (sorry!) creates a new ArtistCredit object that should've been created a long time ago. All existing code has now been refactored to use ArtistCredits.

There were several modules no longer in use, for endpoints that no longer existed. Cleaned up.

Finally the recording_lookup now uses the MB Recording Cache, which makes everything faster and merges tag and year lookup into one concise module.

More work will be needed to make a new LB Radio release, but once that is complete, then we'll release Troi 1.0!

[github-actions]

Test Results

  4 files  ± 0    4 suites  ±0   4s ⏱️ ±0s
 51 tests  -  5   51 ✅  -  5  0 💤 ±0  0 ❌ ±0 
204 runs   - 20  204 ✅  - 20  0 💤 ±0  0 ❌ ±0 

Results for commit a5cfedb. ± Comparison against base commit a262451.

This pull request removes 6 and adds 1 tests. Note that renamed tests count towards both.

tests.listenbrainz.test_area_random_recordings.TestAreaRandomRecording ‑ test_read
tests.musicbrainz.test_ac_id_lookup.TestArtistCreditNameLookup ‑ test_read
tests.musicbrainz.test_genre_lookup.TestGenreLookup ‑ test_read
tests.musicbrainz.test_year_lookup.TestYearLookup ‑ test_read
tests.musicbrainz.test_year_lookup.TestYearLookup ‑ test_read_keep_unmatched
tests.musicbrainz.test_year_lookup.TestYearLookup ‑ test_read_remove_unmatched

tests.test_entities.TestEntities ‑ test_artist_credit

♻️ This comment has been updated with latest results.

[github-actions]

Package	Line Rate	Complexity	Health
.	35%	0	❌
content_resolver	0%	0	❌
content_resolver.formats	6%	0	❌
content_resolver.model	0%	0	❌
external	39%	0	❌
listenbrainz	46%	0	❌
musicbrainz	71%	0	➖
patches	26%	0	❌
patches.lb_radio_classes	0%	0	❌
tools	74%	0	➖
.	35%	0	❌
content_resolver	0%	0	❌
content_resolver.formats	6%	0	❌
content_resolver.model	0%	0	❌
external	39%	0	❌
listenbrainz	46%	0	❌
musicbrainz	71%	0	➖
patches	26%	0	❌
patches.lb_radio_classes	0%	0	❌
tools	74%	0	➖
.	35%	0	❌
content_resolver	0%	0	❌
content_resolver.formats	6%	0	❌
content_resolver.model	0%	0	❌
external	39%	0	❌
listenbrainz	46%	0	❌
musicbrainz	71%	0	➖
patches	26%	0	❌
patches.lb_radio_classes	0%	0	❌
tools	74%	0	➖
.	35%	0	❌
content_resolver	0%	0	❌
content_resolver.formats	6%	0	❌
content_resolver.model	0%	0	❌
external	39%	0	❌
listenbrainz	45%	0	❌
musicbrainz	71%	0	➖
patches	26%	0	❌
patches.lb_radio_classes	0%	0	❌
tools	74%	0	➖
Summary	23% (4172 / 17989)	0	❌

[amCap1712]

LGTM, Thanks!