New patch for Assetto Corsa 1.0.6 RC

Here's the changelog in the new patche for Assetto Corsa with some fixes:

1.0.6 RC 
- Launcher default theme: fix for opponent skin selection method
- Launcher default theme: fix for special event opponent level
- updated FMod project for modders (in SDK\Audio folder). Please use Fmod 1.05.03 - pipeline still WIP
- exposed MAX_CHANNELS parameter in assetto_corsa.ini. Lower to 32 ONLY IF you experience stuttering/missing audio during gameplay
- fixed missing backfires for some cars
- optimized FMod thread occupancy
- Lotus 98T qualifying turbo and engine rev damage balancing