* Migrate mqtt to async
* address paulus comment / convert it complet async
* adress paulus comment / remove future
* Automation triggers should be async
* Fix MQTT async calls
* Show that event helpers are callbacks
* Fix tests
* Lint
* Add support for light effects
* Move PLATFORM_SCHEMA changes in light to mqtt_template
* Add effect validation
* Add unittests
* Add light effect to demo and unittests
* Use cv.string for config validation
* Use cv.ensure_list for config validation
* Fix typo
* Remove unused exception management for effect