Eufy device state isn't reported if the bulb is off, so avoid stamping on
the previous values if the bulb isn't going to give us useful information.
In addition, improve handling of bulb turn on if we aren't provided with a
brightness - this should avoid the bulb tending to end up with a brightness of
1 after power cycling.
* Fix up Eufy handling of colour lights
The Eufy colour lights have separate colour and temperature modes, and give
much less light output when in colour mode. Brightness is also handled in
a slightly confusing way, which means that state must be maintained in
order to avoid switching the light between modes by accident. Add some
additional handling for that.
* Bump the lakeside version
This version has important bugfixes for colour bulbs.
* Hound fixes
* Add support for Eufy bulbs and switches
Add support for driving bulbs and switches from the Eufy range.
* Fix hound checks
* Satisfy pylint
* Handle review comments
* Review updates and test fixes
* PyLint is a bit too aggressive
Paulus Schoutsen
Ville Skyttä
Matthew Garrett