## Description:
More fixes flagged by pylint 2 that don't hurt to have before the actual pylint 2 upgrade (which I'll submit soon).
## Checklist:
- [ ] The code change is tested and works locally.
- [x] Local tests pass with `tox`. **Your PR cannot be merged unless tests pass**
* Accept and report both xy and RGB color for lights
* Fix demo light supported_features
* Add new XY color util functions
* Always make color changes available as xy and RGB
* Always expose color as RGB and XY
* Consolidate color supported_features
* Test fixes
* Additional test fix
* Use hue/sat as the hass core color interface
* Tests updates
* Assume MQTT RGB devices need full RGB brightness
* Convert new platforms
* More migration
* Use float for HS API
* Fix backwards conversion for KNX lights
* Adjust limitless min saturation for new scale
* Add legacy LIFX platform for Windows support
The async platform introduced in 9ef084d903 has
turned out to use Python functionality that is not available in Windows.
This commit restores the previous implementation, now named lifx_legacy.
* Add a comment about the platform being a legacy implementation
* Warn when using unsupported lifx platform on Windows
* Update .coveragerc