Enhancement: Support for MPD stickers

[cfnnmcg]

Are there any plans on supporting MPD stickers? These are this neat feature that allows MPD clients to associate additional metadata to songs and other objects in the library. For example, Cantata uses them to add support for "star ratings":

Other clients use them for various purposes, like play counts, "likes" and so on, as documented in this repo: https://github.com/jcorporation/mpd-stickers.

I think it would be a very useful feature, particularly for people that like to organize and filter their library more accurately, and for better playlist creation.

[yktoo]

Hi @cfnnmcg, thanks for bringing this to my attention. It looks like a valuable addition. Especially the rating seems a commonplace use for this.