Volumetric fog and mist presets

Added system for volumetric fog & mist presets. And introduced sky haze slider.

All of this and more will be unlocked for creator of course. Author will be able to force these conditions for race:

time of day

head lamp

clouds, atmosphere

volumetric fog & mist & haze

map material (you can for example choose contours only map for race)

compass

game mode

After completing your first race, you will be able to override these conditions.

Here is video: