moved split plane calculations to reTreeBalanceStrategy
added skeleton code for reCollisionGraph
renamed reCollisionGraph to reContactGraph, plus small changes
support for simple sphere collisions
created Dynamics module, renamed reCollisionGraph to reContactGraph, simple planetary motion simulation
very basic planetary motion demo, update cmake to run tests after make
added test for reSphere and reProxyShape, updated reAllocator to support reference types, refactored objects to use reference types when not expecting nulls
changed addInteraction to use reference, removed dependency on <algorithm>
introduced builder pattern
added remove/destroy methods to reWorld
renamed tests/reSolid -> tests/reRigidBody
moved math functions into re namespace, refactored tests, added tests/reTransform
renamed math_funcs.h -> math_common, added more tests to tests/reTransform.h
added inverse test to tests/reTransform
added tests for mat4x4, updating viewing camera
updated tests, camera is almost working?
reorganizing file structure
removed RayTracing demo dependency on glm
moved and renamed demo -> PlanetaryMotionDemo
moved react source files, added missing shaders to demo