If there is an EDITNNCR entry and a NNC entry for the same cell pair
then the EDITNNCR entry is not be represented inernally but we simply
overwrite the transmissibility of the corresponding NNC entry.
If there is an EDITNNC entry and an EDITNNCR entry for the same cell
pair then the EDITNNC entry is removed while internalizing EDITNNCR.
Order matters for EDITNNCR entries in the sense that later specified
values will overwrite previous entries when we internalize.
Note that similar to EDITNNC only the first 7 options are represented
and the rest is ignored by OPM flow.
Note that EDITNNCR entries for neighboring cells are ignored (like for
EDITNNC).
f2ffebc814