RFT ensemble refactoring

* Compute average MD for intersections with a cell
* Create extractor for simulation well
* Remove rftReader from RifDataSourceForRftPlt
* Add function compute measured depth for RFT cells based on well path geometry
* Move statistics reader to well ensemble curve set
* Make sure both TVD and MD are cached if possible
* Add selection of grid case to use for estimation of measured depth (MD)
Add "Grid Model For MD" where the user can select a grid model. This grid model is propagated to a hidden field in EnsembleCurveSet. The grid model is then applied to RifReaderEnsembleStatisticsRft owned by EnsembleCurveSet

ApplicationLibCode/ProjectDataModel/Flow/RimWellRftEnsembleCurveSet.h

@@ -32,6 +32,9 @@
 
 class RiuCvfOverlayItemWidget;
 class RimSummaryCaseCollection;
+class RimEclipseCase;
+class RifReaderEnsembleStatisticsRft;
+class RifReaderRftInterface;
 
 class RimWellRftEnsembleCurveSet : public caf::PdmObject
 {
@@ -57,6 +60,11 @@ public:
     RimRegularLegendConfig*    legendConfig();
     RigEnsembleParameter::Type currentEnsembleParameterType() const;
 
+    void            setEclipseCase( RimEclipseCase* eclipseCase );
+    RimEclipseCase* eclipseCase() const;
+
+    RifReaderRftInterface* statisticsEclipseRftReader();
+
 protected:
     void fieldChangedByUi( const caf::PdmFieldHandle* changedField, const QVariant& oldValue, const QVariant& newValue ) override;
 
@@ -69,11 +77,18 @@ protected:
 private:
     QString              ensembleName() const;
     std::vector<QString> parametersWithVariation() const;
+    void                 clearEnsembleStatistics();
 
 private:
+    caf::PdmPtrField<RimEclipseCase*>           m_eclipseCase;
     caf::PdmPtrField<RimSummaryCaseCollection*> m_ensemble;
     caf::PdmProxyValueField<QString>            m_ensembleName;
     caf::PdmField<ColorModeEnum>                m_ensembleColorMode;
     caf::PdmField<QString>                      m_ensembleParameter;
     caf::PdmChildField<RimRegularLegendConfig*> m_ensembleLegendConfig;
+
+    cvf::ref<RifReaderEnsembleStatisticsRft> m_statisticsEclipseRftReader;
+
+protected:
+    void initAfterRead() override;
 };