get Orientation
Get the orientation of the camera represented as a unit quaternion [x, y, z, w]. The default pose of the camera is such that the forward vector is looking up the -Z axis and the up vector is aligned with north orientation of the map: forward: [0, 0, -1] up: [0, -1, 0] right [1, 0, 0] With the w value as the real part of the complex number
Return
orientation if set.