GRID TEST

--  Press any grid key to light up that key.

--  Screen will show `x,y,z` coordinates for each grid key press. `z` is 1 for key-down, 0 for key-up.

-- Tilt values will display for grids with that feature.  

--  Select grid device port, enable tilt, and set grid rotation from parameters screen

--  Controls
--
--  K2 : 2 second press + release = all leds on
--  K2 : Short press + release = all leds off - or cancel pattern
-- 
--  K3 : Fire Test Pattern
--
--  E3 : Select Test Pattern
--     Fade - brightness fade up from left to right
--     Chase - all leds on level 1, bright led travels across each row in order
--     Diagonal - diagonal pattern from top left to bottom right, fading over 6 steps
--     Random - random pattern - 10 times