Plugwise

- Anna: add two sensors related to automatic switching between heating and cooling and add a heating/cooling-mode active indication
- Adam: also provide a heating/cooling-mode active indication
- Fixing 171
- Improved dependency handling (dependabot)

- Adam: collect `control_state` from master thermostats, allows showing the thermostat state as on the Plugwise App
- Adam: collect `allowed_modes` and look for `cooling`, indicating cooling capability being available
- Optimize code: use `_all_appliances()` once instead of 3 times, by updating/changing `single_master_thermostat()`,
- Protect several more variables,
- Change/improve how `illuminance` and `outdoor_temperature` are obtained,
- Use walrus operator where applicable,
- Various small code improvements,
- Add and adapt testcode
- Add testing for python 3.10, improve dependencies (github workflow)
- Bump aiohttp to 3.8.1, remove fixed dependencies

- Recognize when a thermostat has been removed from a zone and don't show it in Core
- Rename Group Switch to Switchgroup, remove vendor name