Add Arcade Pacman hardware

[MikeDX]

This PR adds Pacman hardware to 8bit workshop and includes a few demo examples.

A simple hello world
A simple sprite example
A port of the siege game
A port of the "chase" game
An implementation of the "Solarian" shooter
A music player

[MikeDX]

@sehugg Please note, this requires squash merging to remove some of my commits which has had the official rom included.

[sehugg]

Cool! I'll check this out. Does the fire button come from Pengo or is there a vestigal switch?

[MikeDX]

Fire button is essentially the "fire" homebrew button

Keys.A (Space) → IN0 bit 0x80 // labeled "FIRE (Space) — homebrew"
Keys.START → IN1 bit 0x20 // START1
Keys.VK_2 → IN1 bit 0x40 // START2

The question about pengo is interesting, since its not much of a reach to extend this to pengo hardware and take advantage of the extra buttons.