Merge pull request #247 from zh99998/patch-1

include string.h in ocgcore/libdebug.cpp

ocgcore/libdebug.cpp

@@ -5,6 +5,7 @@
  *      Author: Argon
  */
 
+#include <string.h>
 #include "scriptlib.h"
 #include "duel.h"
 #include "field.h"