#13771 RftPlot: Ensemble curve set selection and highlighting

- Legend items are now ordered to match the project tree order
- Selecting a curve set in the project tree highlights it in the plot
  and hides member curves of other curve sets (statistics unaffected)
- Clicking a legend item in the plot selects the curve set in the
  project tree
- Improve text layout in dialog when multiple file names are found
- Fix missing update of ensemble curve sets

ApplicationLibCode/Commands/RicImportGridAndSummaryEnsembleDialog.cpp

@@ -720,10 +720,10 @@ QStringList RicImportGridAndSummaryEnsembleDialog::checkForMultipleFilenamesAndU
         m_blockItemUpdates = false;
 
         QStringList allNames = canonicalCounts.keys();
-        warnings.append( QString( "Ensemble '%1' contains multiple filenames: '%2'.\n"
+        warnings.append( QString( "Ensemble '%1' contains multiple filenames:\n'%2'\n\n"
                                   "Only '%3' (%4 realizations) is selected. Deselected: '%5'." )
                              .arg( ensembleItem->text() )
-                             .arg( allNames.join( ", " ) )
+                             .arg( allNames.join( "', '" ) )
                              .arg( mostCommon )
                              .arg( maxCount )
                              .arg( outlierNames.join( ", " ) ) );