fixed scheduler in vault. insert borderline reference

interrupt/guard.h

@@ -2,18 +2,19 @@
  *  \brief \ref Guard synchronizes access to epilogue level
  */
 
-#pragma once
+//#pragma once
 #include "../object/bbuffer.h"
 #include "../object/key.h"
 #include "../types.h"
 #include "epilogues.h"
 #include "../device/textstream.h"
-
+#include "../thread/scheduler.h"
 //! \brief The epilogue vault contains the protected data for the epilogue level
+
 struct Vault {
   Vault();
   TextStream kout = TextStream(0, 80, 0, 10, true);
-
+  Scheduler sch = Scheduler();
   // no copy
   Vault(const Vault&) = delete;
   Vault& operator=(const Vault&) = delete;