better split up of library files "types.h" & "definitions.h"

centralized all printf specifier character definitions
reuse of arginfo handlers
more cleanups
fixed more AMD64 issues
added DEBUG_LEVEL compile flag to exclude DBGn() statements

src/charon/encoding/payloads/vendor_id_payload.c

@@ -222,7 +222,7 @@ vendor_id_payload_t *vendor_id_payload_create()
 	this->critical = FALSE;
 	this->next_payload = NO_PAYLOAD;
 	this->payload_length = VENDOR_ID_PAYLOAD_HEADER_LENGTH;
-	this->vendor_id_data = CHUNK_INITIALIZER;
+	this->vendor_id_data = chunk_empty;
 
 	return (&(this->public));
 }