Official integration supports grouping - no need for custom integration anymore

UPDATE January 2022: The official HEOS integration had grouping features implemented as of Home Asssitant version 2021.12 and this custom integration should not be necessary anymore. It may be deprecated after a time of testing. OBS! If using the mini-media-player card for grouping, note that platform must be changed from 'heos' to 'media_player' for the speaker_group setting.

This custom integration may be used for testing other features such as media browsing or similar, feel free to continue using it.

Fix bug

Fixing attribute error bug (quick fix for now)

Adjustments to HACS

2021.3.2

Bump version

First release

First release. Grouping feature re-written after reports of some errors. Made HACS compatible (by using custom repo).