Add Sonos favorites as music provider

[aegjoyce]

As per title - Home Assistant is able to select and play Sonos favorites directly, is it possible for Music Assistant to pull a list of favorites from the linked account/system to be playable on demand?

My use case for this is specific but probably not unique - the BBC have heavily locked down access to their high quality radio streams so it is unlikely we will be able to add BBC Sounds as a music provider any time soon. But if we can add BBC radio stations to our Sonos favorites via the BBC Sounds sonos integration, then if Music Assistant has access to them, it can initiate playback.

The advantage of this is that you get a high quality stream and also song/show title information when playing.

Thanks!