Official Game Scene

I've created the official scene for our game. Please move things into
this scene if they are missing-- sorry if some stuff didn't make it.

Changes:
- Added map layout to ground (toggle the mesh renderer on ground to
cover it or reveal it)
Organized game objects in hierarchy (PLEASE FOLLOW)
-Added outer fences w/ colliders
-Added roads
-Added placeholder dev cutouts  (couldn't find Isabella on the internet)
- Changed the vert vision range back to -90 , 90
- Added robot in (needs scripts applied -> Andy)