Add Piunora and Zero. Also, enable full build

[tannewt]

Fixes #5768 and fixes #5631

[ladyada]

lol at
`void board_init(void) {
videocore_framebuffer_obj_t *fb = &allocate_display_bus()->videocore;
fb->base.type = &videocore_framebuffer_type;
common_hal_videocore_framebuffer_construct(fb, 640, 480);

framebufferio_framebufferdisplay_obj_t *display = &displays[0].framebuffer_display;
display->base.type = &framebufferio_framebufferdisplay_type;
common_hal_framebufferio_framebufferdisplay_construct(
    display,
    MP_OBJ_FROM_PTR(fb),
    0,
    true);

}
`
"display can support i2c oleds, spi tfts, or 60hz 4K HDMI displays"

[tannewt]

And eink too!

[jerryneedell]

Downloaded and executed artifacts for cm4io, pi zero-w, pizero2w, PiZeroW and pi4b.

All booted OK -- mounted CIRCUITPY and was able to access REPL via USB

[dhalbert]

Looks good!