added the create_crluri_iterator method

src/libstrongswan/crypto/x509.h

@@ -140,6 +140,14 @@ struct x509_t {
 	 */
 	identification_t *(*get_subject) (const x509_t *this);
 
+	/**
+	 * @brief Create an iterator for the crlDistributionPoints.
+	 * 
+	 * @param this				calling object
+	 * @return					iterator for crlDistributionPoints
+	 */
+	iterator_t *(*create_crluri_iterator) (const x509_t *this);
+
 	/**
 	 * @brief Check if a certificate is trustworthy
 	 *