Rotate camera back after multiplanar screenshot
Summary: After all three pictures have been taken in a 3D multiplanar screenshot, perform the aggregated camera rotations in reverse to finish at the initial position. Ref: T28322
Test Plan: Take a 3D multiplanar screenshot with Screenshot Maker of any 3D or 3D+t image
Reviewers: O3 MITK Reviewer Group II, kislinsk
Reviewed By: O3 MITK Reviewer Group II, kislinsk
Differential Revision: https://phabricator.mitk.org/D474