BlueSmirf Bluetooth serial port, with Bluetooth device discovery, listing and pairing

Allows for discovery, and connection to serial over Bluetooth using BlueSmirf Bluetooth Modem hardware

Methods included for returning a list of discovered devices, and pairing with a bluetooth device by "name"

Has method dependencies & calls to FullDuplexSerial, for host comms for bluetooth modem configuration.
Additionally, includes "pass through" low-level serial methods, for native port access

Requires 1 cog for serial driver

Also has method dependencies & calls to "StringBuilder", for low level string assembly, through

character, or "string to be appended" concation