PN532 Support

[DRSDavidSoft]

Hi,

Can you please add support for the PN532 module from Elechouse?
Full documentation is available here: PN532_Manual_V3.pdf
You may also check GNFC and PN532-HSU.py for reference.

The HSU (High-Speed UART as they call it) can be used to communicate with External NFC using a UART to Serial breakboard, such as FTDI or CH340G.

[DRSDavidSoft]

@skjolber, I would love to hear a feedback :)