initial commit of controller_rc

Changed XFrame to more standard 'Multicopter' class, easier config, better IMU calibration, added first draft for OneShot125

Merge branch 'master' of https://github.com/dridri/bcflight

Use MMAL as decode. +Trying to prevent GPU deadlock. +code cleaning

added RawWifi block-recover-mode option, add critical section handling to threads

better stability, more options

Add todo file, add mutex to debug output, code cleaning

Add read-timeout setting for Socket

Add affinity parameter to Thread::setPriority

Add affinity parameter to Thread::setPriority