Compute the depth related geometry properties (DEPTH, DX, DY, DZ, TOPS, BOTTOM) in RimCornerPointCase::createFromCoordinatesArray and replaceGridFromCoordinatesArray, matching the behavior when importing a grid from file. The computation is guarded by the same autoComputeDepthRelatedProperties preference used by the file importers.
A grid created via the create_corner_point_grid API populated the internal
active cell info but never created an ACTNUM result property, so the grid did
not expose ACTNUM the way a grid loaded from an Eclipse file does. Since the
corner point case has no reader interface, the data cannot be loaded lazily and
is now materialized as a STATIC_NATIVE result sized per active cell, mirroring
native Eclipse ACTNUM.
Kristian Bendiksen