Gabi Seitz authored Sep 30, 2020 and Timo Koch committed Apr 05, 2021

with contributions of Holger and Bernd

The following test results had to be adapted:
test_md_boundary_darcy2p2c_stokes1p2c_horizontal
test_md_boundary_darcy2p2cni_stokes1p2cni_horizontal
test_2p1cni_steaminjection_waterwet_box
test_2p1cni_steaminjection_waterwet_tpfa
test_2p2cni_waterair_box
test_2p2cni_waterair_buoyancy_box
test_dec2p2c
test_multiphysics2p2c
test_1pncmin_box
test_3p3cni_kuevette_box
test_3p3cni_kuevette_tpfa
test_3pwateroil_sagd_box