RelationVec class, used for tracking associated matricies in a leaf/node relationship with optional constraints
initial usage demonstration is tsmesh mNodeTransforms, replacing the Vector<MatrixF>

# Conflicts:
#	Engine/source/T3D/guiObjectView.cpp

…r 2d contexts, shifted matrixvec to TransformVec3D

…t uses a single floating point for rotation)

stubbwork for:
class TransformVec2D : public RelationVec2D, public SimObject includes:
class Box2DF : public RectF which is a rotateable RectF.

todos:
properly fill out the following:
template<> inline void RelationVec2D::toGLobal() needs
inline Box2DF& Box2DF::mul(const Box2DF& a)
and
inline Box2DF& Box2DF::mul(const Box2DF& a, const Box2DF& b)
need to sort how we want
template<> inline void RelationVec2D::orbit(S32 id, U32 axis, F32 radianDelta)
to operate

…rque3D into alpha41/relationVecClean

…rque3D into alpha41/relationVecClean

# Conflicts:
#	Engine/source/math/mMatrix.h