Performs a rotation of the axes in the optical train.
This is not an actual optic itself, of course, but can be used to model a rotated optic by appling a Rotation before and/or after light is incident on that optic.
This is basically a placeholder to indicate the need for a rotation at a given part of the optical train. The actual rotation computation is performed in the Wavefront object’s propagation routines.
angle : float
units : ‘degrees’ or ‘radians’