Live ESC recovery now possible

An additional feature was added enabling live recovery of signal when there would be intermittent ESC signal issues mid-flight. In the same run the code variable naming conventrion are now in sync with the PPRZ T4 actuator and AOA modules.

Enjoy the birth of the T4 Actuator Board

Now you can get all sorts of Actuator feedback information back into your speedy controlled Servo's and ESC's in a simple and robust way. Use it to create and even better Autopilot.

This T4-Board solution was crafted with great care and first flown with Paparazzi ( https://wiki.paparazziuav.org/ ) by Alessandro Mancinell. Read more about it in his fantastic paper: Unified incremental nonlinear controller for the
transition control of a hybrid dual-axis tilting rotorquad-plane

Enjoy!