Raspberry Pi Pico I2C Interface Implementation

[studiosoftdev]

Contribution description

Pi Pico I2C support has an implementation now although it is not fully working - it is a baseline implementation for improvement.

Testing procedure

Testing has been implemented by a new example program (pi_i2c) which uses a VCNL4040 device to test the functionality in a simple real-world application. Currently, the device does not report back a correct device ID read and sets GPIO 11 to high.

Issues/PRs references