add ClimateController and additional sensors for IRCv2

[mpcaddy]

• Made some improvements to the IRCv2
• Added the Climate Controller with events to allow for the IRC to know whether they are heating or cooling
• Also added a couple of sensors from the IRCv2 to know the override reason
• Added a switch to be able to trigger the comfort override (To mimic the button on the app)
• Added a Schedule preset to go back to the scheduled preset

May need some adjustments to the Climate Controller demand, I think it is possible to connect multiple to each IRC, so may need to track multiple demands

[mpcaddy]

@JoDehli I'm pretty happy with how this is working so far, been running it for the last week. This is my first work on a homeassistant integration. Also my first time working on python code in quite a while

[JoDehli]

@mpcaddy can you please update your branch if you want that i merge your work.

[mpcaddy]

Hi @JoDehli I've rebased onto master

[JoDehli]

@mpcaddy I tried your code. I do not use the room controller and it is difficult to decide if it is much better. But what I found out is that sometimes the added switch for Override can not be triggered and sometimes it can be triggered. Do you know this behavior?

[mpcaddy]

@JoDehli I've not seen it not being triggered. I think there are some states which the override may not be able to trigger and it depends on what you have set up but I wasn't able to find any information on what states are possible.
I've only got heating set up on my room controller so it could be that it doesn't work correctly with heating.
Essentially I'm triggering what the button in the app does, although I don't know if it triggers different things when it's in different modes.