Outdated Garfield Heights 0.741

Eeensy little content patch, giving some of Viaduct Town's potholes a bit of dimension. Be careful driving too fast over them. Also added are new streetlight models for the school, an improved strip mall, a greatly improved overpass for the freeway complete with entrance/exit ramps*, and a small myriad of LOD's to help optimize the scene.

*The intersection itself is not complete. Also, the exit ramp texture is in .dds format, and for some reason results in a very blurry texture. I don't know why this is or how to fix this, so if any of you have any tips, please let me know.