Test MFEM output for 2d spline spaces #3
Description
Currently there are no tests for output of 2d spline spaces to MFEM, and some of the logic there has not been verified. There needs to be a test similar to that in test/MultiPatchSplineSpace_test.cpp:170 but for 2d. We could probably pull these two tests out into their own file. Also, it would be good to run the output of a 2d spline space made by MFEMOutput.cpp through glvis to make sure that there are no errors that a simple test wouldn't catch.