Fortrezz Mimo2 DH

[peng1can]

I ported the Mimo2 DH and then finished their incomplete "b-side" driver by making it a child device. More details over in this thread...

Fortrezz MIMO2+ Driver

An official driver is now built into Hubitat, so my code is no longer necessary. There is useful discussion about the official driver at the end of the thread though.