[bugfix,uggrid] Fix edge numbering of prisms
The mechanism that transforms the edge numbers from Dune numbering to UG numbering (and back) was wrong for prisms. This patch fixes it.
(cherry picked from commit 1165bd7d)
The mechanism that transforms the edge numbers from Dune numbering to UG numbering (and back) was wrong for prisms. This patch fixes it.
(cherry picked from commit 1165bd7d)