Normalize robot heading server side
Do not draw damcon arena walls in robot drawing function.
Make add_generic_damcon_object a little more parameterized
initialize damcon object ids
Fix bug in damcon object allocations

Was always using index 0 instead of the allocated index
adjust dimensions of damcon arena
Add damcon systems
Implement Liang-Barsky line clipping algorithm
use clipping algo
calculate bounding boxes for vectorized objects
use bounding boxes for object level clipping

instead of doing object level clipping just based on
the origin of the object.