Use hash of input do control if calculation is required

Add hash functions
Add serial number to SummaryReaderInterface
Add hash for RimSummaryCase

Use hash based on input parameters to control caching of data in RimEnsembleStatisticsCase::calculate  and RimEnsembleCurveSet::appendOptionItemsForSummaryAddresses

ApplicationLibCode/ProjectDataModel/Summary/RimEnsembleStatisticsCase.cpp

@@ -19,6 +19,7 @@
 #include "RimEnsembleStatisticsCase.h"
 
 #include "RiaCurveMerger.h"
+#include "RiaHashTools.h"
 #include "RiaTimeHistoryCurveResampler.h"
 #include "Summary/RiaSummaryTools.h"
 
@@ -129,6 +130,11 @@ void RimEnsembleStatisticsCase::calculate( const std::vector<RimSummaryCase*>& s
                                            const RifEclipseSummaryAddress&     inputAddress,
                                            bool                                includeIncompleteCurves )
 {
+    auto hash = RiaHashTools::hash( summaryCases, inputAddress.toEclipseTextAddress(), includeIncompleteCurves );
+    if ( hash == m_hash ) return;
+
+    m_hash = hash;
+
     clearData();
 
     if ( !inputAddress.isValid() ) return;