Removed unused BackFaceCull2D()
Adde a define to switch our vec typedefs to glm
Added Vector3 utility methods that works with glm
Added Vector2 utility methods that works with glm
Get closer to glm, eliminate Vec::repeat, add explicit constructor from scalar
Get closer to glm, eliminate Vec::getNormalized(), add global normalize() function
Fix roll
Get closer to glm, eliminate Vec::normalize()
Get closer to glm, eliminate Vec::lengthSqr(), add global lengthSqr() function