Add a test for geometry optimization in low-dimensional materials
This requires !2012 (merged) and !2113 (merged) to be merged. If !2113 (merged) gets merged first, then the test will be added to !2012 (merged).
This requires !2012 (merged) and !2113 (merged) to be merged. If !2113 (merged) gets merged first, then the test will be added to !2012 (merged).