v2.21 Hot fixes — VR Model Viewer Steam update #5983810

Disable Auto Scale detect by default When loading layout, reset all scale flags between each model load (scale up/down and auto scale detect) Fixed model loading synchronous mode instead of async by default The model loader fell back to synchronous loading by default, I have changed it back to async mode (again). Sorry for this! I have also turned off auto scale detection, I don;t think this is working quite so well. I am going to change it to something like "scale to player". I will find the longest dimension of the model out of x, y, z axes and set that to the player height and scale the rest of the model accordingly. So big, small, whatever it will be about the same size as the player. Also I need to save the model import as data to the layout file (box collider, mesh collider, terrain) so it can be recalled when next loading the layout file. Currently this is not happening but next u...