Aiowiserheatapi

* Fix nuances with httpx
* Fix error deleting schedule

- Migrate from using aiohttp to httpx to correct data after connection close issue cause by aiohttp v3.9.x

* Add PowerTagE support
* Add new v2 hub cloud parameters
* Add new v2 hub capabilities info
* Add v2 hub equipment data to relevant devices
* Add tilt support for shutters
* Fix issue where non ASCII chars removed

* Fix for hub firmware bug whereby Away Mode Affects HotWater is turned off when cancelling overrides if no overrides exist.

- Correct relative modulation level opentherm parameter magnitude

* Amend battery to return None for voltage and percent if battery data not present