Function quatFromEuler

quatFromEuler(yaw: number, pitch: number, roll: number): Quat
Builds a quaternion from euler angles, matching Babylon's Quaternion.RotationYawPitchRoll
Parameters
- yaw: number
  Rotation around Y
- pitch: number
  Rotation around X
- roll: number
  Rotation around Z
Returns Quat
The equivalent quaternion, in (x, y, z, w) order