Added Groups to the driver and huecmdr.

[George Farris]

Hi all,

You can now use Groups that are defined in your Phillips HUE with
Pytomation.  There is support in the huecmdr.py utility for defining
new Groups.

Check the interface docs on the web page for more information.

https://sites.google.com/a/pytomation.com/www/home/documentation/interf
aces/phillips-hue

Cheers
George