Support state composition and new hue v2 events
Changes:
- Use multiple event data keys to compose the sensor state, to support latest Hue v2 events (using
type,subtype
as 'event field', to generate sensor states like 'initial_press-1', 'long_release-2', etc.) - Add new state mapping presets for Hue Dimmer Switch and Hue Button working with new Hue Api v2
- Require Home Assistant Core >= 2021.12.0 and Python >=3.9