NVIDIA GameWorks Integration

Btw, I did experience a crash on Flow if I brought it into VXGI sample level, my naive fix for that was: https://github//UnrealEngi…7662e7daf5e4e7 (included in previous posts repos). I didn’t make PR for as I wasn’t completely sure why was happening (development editor didn’t give much info and didn’t have time to make a debug build for the engine to dig in deeper), just noticed that it threw nullpointer on missing Actor.