DARRAY Instruction implemented

[DerelictDrone]

Implements the DARRAY instruction

Though the only documentation of its existence was a commented out CPULIB entry stating that it took VEC2F, and STRUCT as arguments, and the description stating "Draw an array of pixels", this adds it in a functional state.

VEC2F is position to start draw
STRUCT is a pointer to a struct made up of:
Resolution X
Resolution Y
Pixel Width
Pixel Height
Color Mode (this currently has the same set of color modes as the digital screen)
Pointer to color buffer

Uses a quota interrupt like MCOPY to allow a buffer of any size to be drawn.

Color modes available:
0 = RGBXXX (1 cell per pixel)
1 = R G B (3 cells per pixel)
2 = 24 Bit RGB / True Color Mode (1 cell per pixel)
3 = RRRGGGBBB / Digit packed RGB mode (1 cell per pixel)
4 = Mono color / Grayscale (1 cell per pixel)

Color modes 0, 2, and 3 all cache colors and add an arbitrarily defined cycle penalty for each uncached color that needs processing.
Cycle penalty for mode 0 = 8 cycles
Cycle penalty for mode 2 = 10 cycles
Cycle penalty for mode 3 = 15 cycles

All examples below are running on a GPU in a 2.1MHz async thread, and are using color mode 2

Example showing its rendering speed for a 512x512 pattern of 8 colors

renderspeed.512512.mp4

Example showing its rendering speed for a 512x512 pattern of unique colors(262144 colors total, getting full caching penalty for each pixel)

512512.darray.zerocache.mp4

Example showing it rendering an 128x128 image of the workshop image for wire-cpu, scaled up to 512x512 by setting Pixel Width and Pixel Height to 4,4 in the DARRAY struct

wirecpu.rendertest.128128.mp4