Integrates qt6-ported code generator into qt6-overall-build-pipeline

qt6-after/qt6-migrated-legatus/Lts/Common/CodeGen/GeneratorGrantleeBase.h

@@ -1,5 +1,8 @@
 
 
+#ifndef GENERATORGRANTLEEBASE_H
+#define GENERATORGRANTLEEBASE_H
+
 #include "XmlReader.h"
 
 #include <QtCore/QObject>
@@ -46,3 +49,5 @@ class GeneratorGrantleeBase : public QObject
     NGL::INGLLogger& m_logger;
 };
 } // namespace CodeGen
+
+#endif // GENERATORGRANTLEEBASE_H