Merge branch 'feature/compositional-facet-coupling' into 'master'

dumux/multidomain/facet/box/CMakeLists.txt

dumux/multidomain/facet/box/darcyslaw.hh

dumux/multidomain/facet/box/fickslaw.hh

dumux/multidomain/facet/box/properties.hh

dumux/multidomain/facet/cellcentered/mpfa/localassembler.hh

dumux/multidomain/facet/cellcentered/tpfa/CMakeLists.txt

dumux/multidomain/facet/cellcentered/tpfa/darcyslaw.hh

dumux/multidomain/facet/cellcentered/tpfa/fickslaw.hh

dumux/multidomain/facet/cellcentered/tpfa/properties.hh

test/multidomain/facet/1pnc_1pnc/CMakeLists.txt

test/multidomain/facet/1pnc_1pnc/grids/square.geo

test/multidomain/facet/1pnc_1pnc/grids/square.msh

test/multidomain/facet/1pnc_1pnc/grids/square_surface.geo

test/multidomain/facet/1pnc_1pnc/grids/square_surface.msh

test/multidomain/facet/1pnc_1pnc/main.cc

test/multidomain/facet/1pnc_1pnc/params.input

test/multidomain/facet/1pnc_1pnc/problem_bulk.hh

test/multidomain/facet/1pnc_1pnc/problem_facet.hh

test/multidomain/facet/1pnc_1pnc/spatialparams.hh

test/multidomain/facet/CMakeLists.txt