ofdmflexframe_tx: replacing resampling with msresamp
ofdmflexframe_rx: replacing resampling with msresamp
flexframe: modifying tx/rx pair to comply with new API
updating packet tx/rx to comply with new APIs
framing: setting default properties for improved likelihood of succes

  * improves likelihood that everything will work without tweaking
  * generally one must adjust certain properties to compensate for
    poor hardware
  * much nicer user experience