* Add support for homekit humidity control * Add tests
* Fix tado supported operation modes when used with homekit_controller * Replace with list comp as requested in review * More list comps
* Move constants to const.py * Import from const instead of climate
* Add a test for a homekit_controller switch * Add a test for a homekit_controller lightbulb * Add a test for homekit_controller thermostat * Changes from review * Patch utcnow to known time in HK tests * Neater fixture use per review