Added support for selected well data in a statistics case

Now possible to show well data from selected source case for a statistics case
Added state to RimResultCase to monitor data actually read from disk
p4#: 21258

ApplicationCode/ProjectDataModel/RimResultCase.h

@@ -62,4 +62,6 @@ private:
     // Obsolete field
     caf::PdmField<QString>      caseDirectory; 
 
+    bool                        m_gridAndWellDataIsReadFromFile;
+    bool                        m_activeCellInfoIsReadFromFile;
 };