Setup the Bullet Dynamics Physics Extension and got a basic example working
with it.
Added soft body support, and renamed headers and functions.
Seperated classes and Bullet API stuff from headers included from SHELLMain
Expanded shape functions to include all basic shapes as well as convenience
functions.
Cleanup
Removing nonexistant BBox3D collision system, I do not see us programming it
and I just added 3D physics with Bullet.
Merge remote-tracking branch 'upstream/master'

Conflicts:
	ENIGMAsystem/SHELL/Collision_Systems/BBox3D/functions.cpp
Merge pull request #236 from RobertBColton/master

Implemented Bullet Dynamics