Feature Request, Extend Protocol for Control of LCD Backlight

[ForrestErickson]

There are times when I want the LCD backlight on and times when I want it off.

The GPAD_API protocol should be extended so that the controlling device can turn the backlight on and off.

As of GPAD_API 0.47 when an "a0message" is sent the backlight goes off and you can not read the OK level information on the LCD.

cc:
@nk25719

[TheBakedPotato]

This seems like a duplicate of issue #2 where I left an initial comment with some thoughts and questions.

Another comment I have is that if you want the LCD of the Krake then the Krake should provide functionality for just turning on the LCD. This seems outside of the scope of the protocol since this is related to a specific client using the GPAP.