RimEclipseCase_createMultipleFractures takes WellPath objects and a
FractureTemplate object instead of names and ids. The
MultipleFractures::Action enum is moved from the Ricf header to
RicCreateMultipleFracturesFeature.h so the object method does not
depend on CommandFileInterface, and is registered as the Python
StrEnum MultipleFracturesAction.
Add RicfForwarding::findFractureTemplate(). RicfCreateMultipleFractures
resolves names/ids and forwards to the object method.
The hand-written Case.create_multiple_fractures(template_id=...,
well_path_names=...) Python wrapper is removed: the generated
Reservoir method has the same name and shadows it. The test is updated
to the object based signature.