🚀 | Add support for PN532 based RFID readers

[fredg02]

Feature Description

What functionality would you like to see in your phoniebox?

I would like to use a PN532 based RFID reader with phoniebox. It's connected to a Raspberry Pi via I2C (SPI might be possible, but I did not test that).

The product link is here:
https://shop.pimoroni.com/products/adafruit-pn532-nfc-rfid-controller-shield-for-arduino-extras

How do you envision the feature to work from a users perspective?

It should just work like other types of RFID readers.

Further information that might help

I was able to get this to work with py532lib (https://github.com/HubCityLabs/py532lib).
=> will open a PR for this.
This should also solve issue #421.