Summary multiplot improvements (#8598)

* Create multi summary plot from summary plot(s)
* Rearrange multi summary plot properties
* Enable source stepping toolbar for multi summary plot
* Automatically activate new summary plot when creating from data sources -> data vector tree
* Enable global key controls for switching data in summary and multi summary plots
* Update tooltip texts for summary plot toolbar

ApplicationLibCode/Application/RiaGuiApplication.h

@@ -134,6 +134,8 @@ public:
     void              showFormattedTextInMessageBoxOrConsole( const QString& errMsg ) override;
 
 protected:
+    bool notify( QObject* receiver, QEvent* event ) override;
+
     // Protected RiaApplication overrides
     void invokeProcessEvents( QEventLoop::ProcessEventsFlags flags = QEventLoop::AllEvents ) override;
     void onFileSuccessfullyLoaded( const QString& fileName, RiaDefines::ImportFileType fileType ) override;
@@ -159,8 +161,6 @@ private:
 
     void storeTreeViewState();
 
-    bool notify( QObject*, QEvent* ) override;
-
 private slots:
     void slotWorkerProcessFinished( int exitCode, QProcess::ExitStatus exitStatus );
     void onLastWindowClosed();