Rim3dView_exportContourMapToText exports the contour map of an Eclipse
or GeoMech contour map view. The implementation is extracted from the
RICF_SOURCE_INIT feature RicExportContourMapToTextFeature into a static
helper returning std::expected, used by both the object method and the
legacy command.
The Python EclipseContourMap/GeoMechContourMap.export_to_text() wrappers
are kept as aliases of the generated method.
* Use same naming for ensemble grid cases as ensemble summary cases
* Create Polygons: Ask for polygon area cutoff when polygon count is high
* Show Create Polygons from Contour Map in polygon collection menu
* Update titles in crossplots
* Clear message panel when project is closed
* Show text message for start and complete of replace ensemble