Update to 0.91 — AI Drone Simulator Steam update #818203

Version 0.91 New : PIDs loop controls The game uses a unified model of rotation control and rotation physics. Each model has its values determined from the original BlackBox file. But each pilot should have total control, so we introduced the PID Authority and PID Responsivity parameters : Increase PID Authority to kill the rebound after a flip. Increase PID Responsivity to have a more responsive quad. (like more P) Improvements Added Field Of View shortcuts controls. By default, press the keyboard RIGHT key to increase the FOV, the LEFT key to decrease it. Fixes Fixed : track items not appearing after entering multiple times the Track Editor. Fixed : FrSky XSR-SIM compatibility. Now works fine.