update 2021/03/23 valve index support

added compatibility with valve index - general performance improvements - fixed issue with Danaé after loading where she waited in front of the gate even though it was already open (spotted by Hanni) - fixed issue with the tatoo in the prison scene - fixed issue with the gamma value in the hostage taking scene - fixed issue with LOD1 and broken lightmaps UV for the fountain in the quays scene - fixed issue with the gear LOD in the market scene - fixed issue with controller vibration when controllers are not in the field of view (quays and temple scene) - fixed issue with a missing piece of mesh from the pythies belly - fixed issue with the doll that could be snapped to anything - fied issue with spawning point in the desert - fixed issue with quality configuration system that prevented selecting the corresponding quality setting for low quality - fixed issue with reflexions in the museum - fixed issue with hands and objects offset - fixed issue with the cube from the key that could detach from the handle - fixed issue with spawning particles in the dream 2 - and of course, fix random bugs occuring when fixing other bugs