Prepare for release

Always create plots using Qwt
Always create plot for command "New Summary Plot"
#9103 : Fix missing updates in multiselect field update operation
Add Open Summary Plot Editor
Trigger missing load of data
Enable data source display for first realization of an ensemble
Always show legend text
Set version to 2022.06.0-RC-02

ApplicationLibCode/ProjectDataModel/Summary/RimSummaryCaseCollection.cpp

@@ -184,6 +184,8 @@ void RimSummaryCaseCollection::addCase( RimSummaryCase* summaryCase )
 {
     summaryCase->nameChanged.connect( this, &RimSummaryCaseCollection::onCaseNameChanged );
 
+    if ( m_cases.empty() ) summaryCase->setShowRealizationDataSource( true );
+
     m_cases.push_back( summaryCase );
     m_cachedSortedEnsembleParameters.clear();
     m_analyzer.reset();