Massive modifications, please read

Minor things:
+ added CommandClear to add empty lines
- removed constant color changing of robot design view because Mouse is
now "trapped"

Major things:
+ added lighting (very buggy but it seriously helps)
+ added camera movement (look around with mouse and move with arrow
keys)

Bugs:
+ trimming has been disabled due to incorrect trimming to a 3D shape (it
trimmed to the screen itself) so TextWriter will continue writing new
lines up past the border of itself