* Initial hlk-sw16 relay switch support
* remove entity_id and validate relay id's
* Bump hlk-sw16 library version and cleanup component
* refactor hlk-sw16 switch platform loading
* Use voluptuous to coerce relay id to string
* remove force_update for SW16Switch
* Move to callback based hlk-sw16 relay state changes
* fix hlk-sw16 default port and cleanup some unused variables
* Refactor to allow registration of multiple HLK-SW16 device
* Store protocol in instance variable instead of class variable
* remove is_connected
* flake8 style fix
* Move reconnect logic into HLK-SW16 client library
* Cleanup and improve logging
* Load hlk-sw16 platform entities at same time per device
* scope SIGNAL_AVAILABILITY to device_id
* Fixes for connection resume
* move device_client out of switches loop
* Add timeout for commands and keep alive
* remove unused variables
James Hilliard