Add HEOS Player provider (#2986)

Add HEOS Player provider (#2986)

* Initial commit, ability to connect to a HEOS system and play URL

* Added more function handling

* Some code improvements, fix disconnection done too late

* Map music sources to inputs

* Make sure players are registered, even when they are marked as unavailable

* Build proper source list

* Keep internal heos reference in player

* Set dynamic attributes after player setup

* Implement grouping

* Grab group information when players are set up

* Handle group change events

* Build source list in provider

* Minor rearrangement

* Make sure player update event is cleaned up

* Some cleanup

* Remove some leftover logging

* Handle controller event in provider

* Split player updating into dedicated events

* Populate current_media when we're not playing

* Set sample rate configs

* Handle connection errors

* Temp troubleshooting commit

* Clean up some code and comments, adjusted some minor things

* Use fallbacks on mappings

* Disable player re-enabling for now

* Handle AUX inputs

* Handle player change event from HEOS

* address PR review comments

* Reduce safe max sample rate and bit depth for older devices

* Don't need to set credentials, unused right now