Clean up th ecompile process by centralizing the include files

- code compile tested, but due to a yet unresolved problem with
          parse.h's creation, compile not completed...

src/include/commands/creatinh.h

@@ -0,0 +1,20 @@
+/*-------------------------------------------------------------------------
+ *
+ * creatinh.h--
+ *    prototypes for creatinh.c.
+ *
+ *
+ * Copyright (c) 1994, Regents of the University of California
+ *
+ * $Id: creatinh.h,v 1.1 1996/08/28 07:21:45 scrappy Exp $
+ *
+ *-------------------------------------------------------------------------
+ */
+#ifndef CREATINH_H
+#define CREATINH_H
+
+extern void DefineRelation(CreateStmt *stmt);
+extern void RemoveRelation(char *name);
+extern char* MakeArchiveName(Oid relid);
+
+#endif	/* CREATINH_H */