Breaking changes

smartswitches with voltage, current, power attributes attached to the switch have had them removed. These were deprecated a long time ago, with separate sensors being the preferred replacement.
smartswitches now use updatedps to prod the device into sending updates for those power, current and voltage sensors. Some devices may not like this, and act strangely, please file a bug if you see any strange behaviour with smartswitches after upgrading to this release. (#420)

New devices

smartswitches: standardize putting calibration attributes on the sensor they apply to
many devices: add duration class to timer related sensors
Abalon curtain: swap open and close commands, add curtain class (#418)
Catit pixi: add enum class to water level sensor, add pump maintenance sensor and reset button (#455)
Aubess 1gang switch: mark energy dp as optional (#454)
Anko fan: fix timer units
Salcar T9W; fix hvac_mode mapping (#460, #359)

handle null status when manually refreshing (#444)
do not manually refresh when the receive loop is already running (#443)
only return options for sensors that return strings (#455)
logging performance improvements
include entity type in unique_id to avoid warnings and allow user customization when button and switch or fan and humidifier have the same name. (#455)