Library (using libusb) to talk to FTDI's UART/FIFO chips
including the popular bitbang mode.

The following chips are supported:
- FT4232H / FT2232H
- FT232R  / FT245R
- FT2232L / FT2232D / FT2232C
- FT232BM / FT245BM (and the BL/BQ variants)
- FT8U232AM / FT8U245AM
