RimEclipseCase_exportCompletions takes WellPath objects (empty list
means all visible well paths) and an explicit export folder, and
exposes all completion export settings. The existing enums
ExportSplit, CompdatExport and PressureDepletionWBHPSource are
registered as Python StrEnums CompletionExportSplit,
CompdatExportType and TransScalingWbhpSource.
RicfExportWellPathCompletions resolves well path names to objects and
the export folder from the command file executor, then forwards to the
object method. Case.export_well_path_completions() in Python is kept
and emits a DeprecationWarning.