* Added component for flic smart buttons.
* Apply home-assistant coding styles.
* Fixed flic configuration.
* Made logging for scanning for new buttons less verbose.
* Fixed flic event data.
* Follow async conventions.
* Added new requirements to requirements_all.txt.
* Added flic component to .coveragerc
* Updated flic threshold configuration key names.
* Flic devices are now removed when they disconnect.
* Include review feedback.
* Fixed stopping of clients in flic component when home assistant is stopped.
* Updated flic component by integrating input of #4738.
Use library method to determine click type. Merge three click events into single one with click_type parameter.
* Use a single client for both handling click events and scanning for new buttons.
* Renamed flic ‘auto_scan’ configuration variable to ‘discovery’ using HA constants.
