Add HACS support

[a-pir1]

I think HACS support for this integration would open a lot more users to be able to use this integration. Installing integrations manually can be very difficult for some users. HACS makes it a lot more readily available for people.

[donnie-darko]

HACS integration would be great!

[flyingtech]

I agree with adding to HACS. Im still new to HA and installing this sounds duanting.

[Nusserdt]

You could easily add the github repository url in HACS and add the project manually. I test it yesterday and it works like a charm.