* Add mochad light component
This commit adds a new component to control x10 dimmers/lights with
mochad.
* Create comm_type and address constants
The comm_type and address conf constants are shared between all mochad
devices because they are required information used for configuring a
device. This commit moves the definition into const.py so they're
consistent between all component types.
This commit adds a new component for communicating with mochad[1] a
socket interface for the CM15A and CM19A USB X10 controllers. This
commit leverages the pymochad library to interface with a mochad socket
either on a local or remote machine. Mochad is added as as a generic
platform because it supports multiple different classes of device,
however in this patch only the switch device implemented as a starting
point. Future patches will include other devices types. (although
that's dependent on someone gaining access to those)
[1] https://sourceforge.net/projects/mochad/