* Support DMX RGB lights (PAR lights, spotlights, wash lights, etc)
* Configurable R/G/B channel and Brightness/Master channel
* Add configurable parameters to serial_port needed to configure a port for DMX
* Add DMX tab to settings
This adds support for the Blinkinlabs BlinkyTape controller, a
USB-powered digital LED strip controller. Devices are detected
automatically by scanning for their VID/PID, and connected to using
serial.
This code was tested in Windows.
Commit squashed and amended for code style and to fix Linux build by Adam Honse <calcprogrammer1@gmail.com>