acoustid: Retrieve additional keys

Add support for album_disc_number, publication_date and track_number
tags.
Update acoustid test accordingly.
1 job for wip/jfelder/acoustid-retrieve-more-keys in 13 minutes and 52 seconds (queued for 1 second)
latest
Status Job ID Name Coverage
  Test
passed #257910
build_stable

00:13:52