Addition of tool to record radio signals

The main script is bandpass_recorder_final.py which takes as an argument a filename to output
the recording.

The .grc files are used to generate bandpass_recorder_file.py and bandpass_recorder_gui.py
which are dependencies of the script.

USB 3.0 is working so the sample-rate is now 30M

Change-Id: Ide2a0776f419d9d131dc49d2a2368b25f804ef5a
6 files changed
tree: 06e0c450e573a409936bce0d01cf8672ebfd5746
  1. bandpass_recorder/