Shitty Addon Module

A module to access the shitty addon connector. This requires adding the necessary calls to Epicardium API (Guide) and creating a c-module for Pycardium (Guide).

This includes:

• The i2c bus, ideally in a way that can be used by existing python driver libraries. (Ref lib/micropython/micropython/extmod/machine_i2c.c)
• The two GPIOs