v0.25.0-beta.2

This beta attempts at representing humidifiers and 2-in-1 devices through an additional humidifier entity. The original fan entity will stay and is the main controlling entity. Devices with separate humidifier function switches lose those switches as that is now controlled by the new entity. I've left the humidity sensor in for convenience.

Now also with support for

• AC3420
• AC3421

Please experiment with this if you own a humidifier device and share your thoughts at #198