Ensures addresses are created for single summary cases

Addresses are now explicitly created for summary cases upon loading or importing.

Remove a potentially costly rebuild if when no calculations are present.

ApplicationLibCode/ProjectDataModel/Summary/RimSummaryCaseMainCollection.cpp

@@ -365,6 +365,15 @@ void RimSummaryCaseMainCollection::loadAllSummaryCaseData()
     std::vector<RimSummaryCase*> sumCases = allSummaryCases();
 
     RimSummaryCaseMainCollection::loadSummaryCaseData( sumCases );
+
+    // Create addresses for all single summary cases (not part of an ensemble)
+    for ( auto sumCase : topLevelSummaryCases() )
+    {
+        if ( sumCase->summaryReader() )
+        {
+            sumCase->summaryReader()->createAddressesIfRequired();
+        }
+    }
 }
 
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