Rhythmbox plugin to show country associated with each artist

[ssssam]

The cpe musicbrainz tool can provide country information. It would be interesting to show a 'country' column in Rhythmbox and allow sorting by country.

[ssssam]

https://github.com/donaghhorgan/rhythmbox-plugins-rating-filters/blob/master/dev/RatingFilters.py gives an idea on how to do this