Possible interoperability with Alexa-Hue Bridge

[Colorado4Wheeler]

I think it would be useful (in the fullness of time) to emulate what is done in the Alexa-Hue Bridge (which emulates Indigo's Virtual devices). That is to be able to specify On, Off and Dim Actions and store the dim value in a variable. That would allow users using the Alexa-Hue Bridge to use the same actions in your plugin as well.

Suggested by Autolog via the Indigo forum