- implemented and tested ts_payload_t

Source/charon/encoding/payloads/payload.h

@@ -158,6 +158,14 @@ enum payload_type_t{
 	 * used internally to handle a transform attribute like a payload.
 	 */
 	TRANSFORM_ATTRIBUTE = 143,
+
+	/**
+	 * TRAFFIC_SELECTOR_SUBSTRUCTURE has a value of PRIVATE USE space.
+	 * 
+	 * This payload type is not send over wire and just 
+	 * used internally to handle a transform selector like a payload.
+	 */	
+	TRAFFIC_SELECTOR_SUBSTRUCTURE = 144,
 };