Add support for recording collections

[UltimateRiff]

already mentioned it in the forums, but I figure this is a better place for feature requests.

a fairly recent addition to MusicBrainz is the Owned Recording collection type. I'd like to be able to add these to the COLLECTION HIGHLIGHTER so I can see a more complete picture of what I've already got.

could be in the same purple as is already used by COLLECTION HIGHLIGHTER, but I could see a reason to have standalone recordings be in a different color too...

[jesus2099]

Thanks for the idea, @UltimateRiff. I don't know if I can work on this feature soon but, in the meantime, please vote this COLLECTION HIGHLIGHTER feature to be genuine part of MB: https://tickets.metabrainz.org/browse/MBS-3491 :)