MYST3: Add transition support
MATH: Add new quaternion capability.
MATH: Replace Euler Angle Implementation in Quaternions with Rotation3D based method.
Merge pull request #943 from JoseJX/FixQuaternions

MATH: Remove redundant Euler conversion.
EMI: Implement head tracking.
EMI: Implement head limits.
EMI: Fixed Actor::getWorldPosition calculating the world transform incorrectly for attached actors.
EMI: Continuously update the look at vector when looking at an actor.