trying to compile
Fix all build problems
fix conflicts
Merge branch 'bmt_physics_new' into Deliverable_3
start working on demo
Add very basic code to check for collisions

There were functions to determine of 2 objects intersected,
now have the collision detection engine keep an idea of a
'game world'.
work in progress - build fails
Adds Physics functions
Fix a buncha build failures

Unit test won't work
All unit tests are passing
Change demo from AABB to Sphere
fix build for 100'th time
Merge branch 'Deliverable_3' into collision_detection
demo is in a 'working' state

need to do some major refactoring!!!
remove unnecessary debug dir
free memory
Merge branch 'Deliverable_3'

Conflicts:
	gameengine/src/physicsengine.cpp