[CutFEM] rename udg parts to unfitted
As many of the former udg components are now also used by cutfem, we rename them to unfitted to better distinguish between those parts that are really udg specific and those that are not.
Showing with 216 additions and 203 deletions
duneuro/eeg/udg_partial_integration_source_model.hh → duneuro/eeg/unfitted_partial_integration_source_model.hh
duneuro/eeg/udg_patch_based_venant_source_model.hh → duneuro/eeg/unfitted_patch_based_venant_source_model.hh