[C-1547] Add favoriteAlbums and favoriteTracks routes

[amendelsohn]

Description

We need an endpoint to get all the favorited albums and one for playlists to support offline mode work. The client will need the full list of the user's favorites. We can handle the pagination on client side.

Haven't worked in this repo before, so please lmk if I'm missing steps.

Tests

Monitoring - How will this change be monitored? Are there sufficient logs / alerts?

[raymondjacobson]

we usually do snake_case for routes, but preferably i’d say
/id/favorites/albums
/id/favorites/playlists
and make
/id/favorites and /id/favorites/tracks do the same

[amendelsohn]

we usually do snake_case for routes, but preferably i’d say /id/favorites/albums /id/favorites/playlists and make /id/favorites and /id/favorites/tracks do the same

it looks like /id/favorites/tracks is already taken by the tracks full endpoint

[amendelsohn]

Is there a version I should be bumping or do we do that in ci?