Introducing several changes to the control stask for the stabilization:
- new structures: stabilization, stab (att and/or rates) and thrust (vector)
- more functional approach: stabilization receives the stab and thrust
setpoints from guidance and fill command vector at the end
- modes and sub-modes are redefined (split stab and guidance modes),
some AP modes are removed (FLIP and MODULE)
- RC read functions are removed and replaced by ABI bindings, one for
each part (AP, stab, guidance_h, guidance_v) with dedicated functions
- transition ratio (float in [0-1]) replace transition_percentage (int)
- the AP_MODULE mode is replaced by generated autopilot
- the ABI hack for guidance indi is not needed anymore
- AP generator supports a new 'store' attribute to use return values of
functions
- cleaning of the stabilization API (for setter functions)
