JsonWizard: Introduce a JsonWizard pointer into SummaryPage

This stopps us from qobject_casting all over the place.

Change-Id: I703ebb48aea7d00546e48ffb7a7fda21dc28d2cf
Reviewed-by: Daniel Teske <daniel.teske@theqtcompany.com>

src/plugins/projectexplorer/jsonwizard/jsonsummarypage.h

@@ -58,6 +58,8 @@ public slots:
 
 private:
     void updateProjectData(FolderNode *node);
+
+    JsonWizard *m_wizard;
 };
 
 } // namespace ProjectExplorer