CTextMenu: add sample code for CComponentsHeader

Origin commit data
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Commit: e4c4a33477
Author: Thilo Graf <dbt@novatux.de>
Date: 2012-11-04 (Sun, 04 Nov 2012)

src/gui/test_menu.h

@@ -45,6 +45,7 @@ class CTestMenu : public CMenuTarget
 		CComponentsPIP* pip;
 		CComponentsForm *form;
 		CComponentsText *txt;
+		CComponentsHeader *header;
 		int width, selected;
 
 		void showTestMenu();