Insteon: Move Device Parameter Flags in BaseObject add to BaseInterface

This includes, is_deaf, is_responder, is_controller parameters.  No need to continue calling both isa('Insteon::BaseDevice') and these functions.
Insteon: Do Not Get Root Obj for IFaceController in Is_Responder

IFace Controller are responders, but root object PLM is not.
Insteon: KeyPadLinc Subgroups Derive Link State is Not Dimmable

The subgroups are not dimmable
Merge pull request #294 from krkeegan/insteon_set_redux

Insteon: KeyPadLinc Subgroups Derive Link State is Not Dimmable
Merge pull request #295 from krkeegan/insteon_device_parameters

Insteon: Move Device Parameter Flags in BaseObject add to BaseInterface