[PA-A][PNM] merge two transmissibility variables into one.

...nmNA_squared_inclusion_topInflow-testset_Calibration.hdf5

...pnmNA_squared_inclusion_topInflow-testset_Validation.hdf5

...spnm_squared_inclusion_topInflow-testset_Calibration.hdf5

...espnm_squared_inclusion_topInflow-testset_Validation.hdf5

BayesValidRox/tests/PA-A/model_exe.py

...idRox/tests/PA-A/models/stokespnm/PNM_Transmissibility.py

...okespnm/orig_params_squared_inclusion_topInflow.tpl.input

...ls/stokespnm/params_squared_inclusion_topInflow.tpl.input

BayesValidRox/tests/PA-A/ref_stokespnm.py