Agate requested to merge 432-tags-admin into develop Jul 25, 2019

See #432 (closed)

admin API to manage tags (retrieve, detail, delete)
include tags in admin API representations of artists, albums and tracks
admin UI to list, detail and delete tags
display tags on artists, albums and tracks detail admin pages
support filtering by tag on admin tracks, albums and artists lists
added a link to tag admin on user-facing tag detail page (assuming user has sufficient permissions)

Demo

Peek_2019-07-25_11-05 cc @funkwhale/reviewers-python, @funkwhale/reviewers-front