* Add a device class mapping to the consts to map from capability IDs to HA device classes.
* Use python3.8 compliant typing
* Fix return type
* Use relative import for musiccast const
* Add select entity for Yamaha MusicCast Capabilities
* Add musiccast select to .coveragerc
* Move status strings to string.select.json and auto generate the english translations from it. Let the device class start with yamaha_musiccast__.
* Make all device classes lower case
* Use platform enum to add select
