[NEW PORT]: comms/py-adafruit-ampy: Adafruit MicroPython tool

Adafruit MicroPython Tool (ampy) - Utility to interact with
a MicroPython board over a serial connection.

WWW: https://github.com/adafruit/ampy

Reviewed by: koobs
Approved by: koobs (mentor)
Differential Revision: https://reviews.freebsd.org/D16524