Hackrfdiags

This code uses libhackrf for a basis, and I have created an AM/FM/WBFM/SSB transmitter/receiver application with this stuff. I call the application radioDiags. The application accepts raw PCM data from stdin for transmit functionality, and sends demodulated data (also raw PCM) to stdout. The raw PCM data is sampled at 8000S/s and is represented by 16-bit signed little endian integers. The user connects to the user interface by using telnet (or netcat) to connect to port 20300.