HUB75 matrix driver for Raspberry Pi 5 using PIO

Orientation	Describe the orientation of a set of panels
Pinout	Describes the pins used for the connection to the matrix
Colorspace	Describes the organization of the graphics data in memory
Geometry	Describe the geometry of a set of panels
PioMatter	HUB75 matrix driver for Raspberry Pi 5 using PIO
AdafruitMatrixBonnetRGB888(framebuffer, geometry)	Construct a PioMatter object to drive panels connected to an Adafruit Matrix Bonnet using the RGB888 memory layout (4 bytes per pixel)
AdafruitMatrixBonnetRGB888Packed(...)	Construct a PioMatter object to drive panels connected to an Adafruit Matrix Bonnet using the RGB888 packed memory layout (3 bytes per pixel)