Basic Map and Light Improvements

[Wapez]

I don't have time to write a long tutorial now, but some basic thinking is this:
 - SpotLights are used to create either strong light casted in a specific direction, or to cast shadows.
 - PointLights are used to simulate light bouncing off of objects and planes.
 - BoxLights are used to raise the overall brightness in an area, to prevent dark areas being COMPLETELY black, and to affect the other lights in the map by a small and faint value.