Create example firmware which emulates the FTDI usb-serial devices

[mithro]

They are really popular. It would be good to have examples to show how the FX2 can emulate them.

[mithro]

Work will probably be done in the following branch. https://github.com/mithro/fx2lib/tree/ftdi-emulation

[mithro]

This already exists at http://www.triplespark.net/elec/periph/USB-FX2/software/advanced_examples.html#convert_serial

[mithro]

Work has moved to a separate repository at https://github.com/mithro/fx2-ftdi-emulation