add info.md and hacs.json

[iantrich]

because @thomasloven is nitpicky 😜

[thomasloven]

Well, don't you think it's in the best interest of the community? 😜
@ludeeus

[iantrich]

Absolutely, it was introduced while I was kind of dormant and didn't really cross my mind 😄 was just being snarky

[ludeeus]

AFAIK info.md is only used for HACS.
hacs.json is far more important to implement.
There is also a key there to render README instead of info.md, in some cases, it does not make sense having both.