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/copy.h

@@ -0,0 +1,21 @@
+/*-------------------------------------------------------------------------
+ *
+ * copy.h--
+ *    Definitions for using the POSTGRES copy command.
+ *
+ *
+ * Copyright (c) 1994, Regents of the University of California
+ *
+ * $Id: copy.h,v 1.1 1996/08/28 07:21:44 scrappy Exp $
+ *
+ *-------------------------------------------------------------------------
+ */
+#ifndef COPY_H
+#define	COPY_H
+
+#include "postgres.h"
+
+void DoCopy(char *relname, bool binary, bool oids, bool from, bool pipe, char *filename,
+	    char *delim);
+
+#endif	/* COPY_H */