Add support for screen blanking
alternatives for common control buttons avoiding keyboard modifiers and press and hold off from buttions
Add SDLK to unixcode mapping to make up for loack of buttons to allow key based reomtes to work better Imove keydebuggign, add support of HDMI CEC based control, add support for grid based layout control and SDL init debugging
Fix perms
Blanking is the inverse of brightness
Digital Output for non fab4 players strip out all old code