ioofoam:IOOFOAM block reading meshes defined by polygonal/polyhedral meshes
geohandlers:FVSelection blocks subset extraction of bulk/boundary meshes and keep results aligned (cell of boundary subset have 1-1 correspondence with border faces of the bulk subset )
geohandlers:FVSelection blocks exposing also internal boundaries, that is those borders of the bulk extraction, not belonging to the original boundary.
this pull fixes:
AFTER MERGE Compliant with bitpit master @ commit https://github.com/optimad/bitpit/commit/3d2e03c0739408bf4ef4583d5e1f1f9d5ffa602e