Refactor: migrate fourteen more collections to caf::PdmObjectCollection<T>

Migrated to the templated base, preserving each collection's existing XML
field keyword for project-file backward compatibility:

- RimEnsembleFractureStatisticsCollection
- RimEclipseInputPropertyCollection
- RimPlotDataFilterCollection
- RimGeoMechContourMapViewCollection
- RimIntersectionResultsDefinitionCollection
- RimCustomObjectiveFunctionCollection
- RimStimPlanModelTemplateCollection
- RimEnsembleWellLogsCollection
- RimEclipseContourMapViewCollection
- RimSeismicViewCollection
- RimGridInfoCollection
- RimEclipseStatisticsCaseCollection
- RimWellIASettingsCollection
- RimVfpDataCollection

External callers that accessed the old public/named array fields directly
(RimEclipseInputPropertyCollection::inputProperties,
RimEclipseStatisticsCaseCollection::cases) now use addItem/items() from
the base. RimCustomObjectiveFunction.h replaced its include of the
collection header with a forward declaration to break the new include
cycle introduced by the migration.

GrpcInterface/RiaGrpcNNCPropertiesService.cpp

@@ -456,8 +456,7 @@ void RiaNNCInputValuesStateHandler::finish()
                 inputProperty->resultName     = m_propertyName;
                 inputProperty->eclipseKeyword = "";
                 inputProperty->fileName       = QString( "" );
-                inputRes->inputPropertyCollection()->inputProperties.push_back( inputProperty );
-                inputRes->inputPropertyCollection()->updateConnectedEditors();
+                inputRes->inputPropertyCollection()->addItem( inputProperty );
             }
             inputProperty->resolvedState = RimEclipseInputProperty::RESOLVED_NOT_SAVED;
         }