Function rotationTo

rotationTo(aUnit, bUnit, dst?): Quat
Computes a quaternion to represent the shortest rotation from one vector to another.
Parameters
- aUnit: Vec3
  the start vector
- bUnit: Vec3
  the end vector
- Optional dst: Quat
  quaternion to hold result. If not passed in a new one is created.
Returns Quat
the result