FIX: Update swiftmailer librairies

htdocs/includes/swiftmailer/lib/classes/Swift/AddressEncoder.php

@@ -0,0 +1,25 @@
+<?php
+
+/*
+ * This file is part of SwiftMailer.
+ * (c) 2018 Christian Schmidt
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Email address encoder.
+ *
+ * @author Christian Schmidt
+ */
+interface Swift_AddressEncoder
+{
+    /**
+     * Encodes an email address.
+     *
+     * @throws Swift_AddressEncoderException if the email cannot be represented in
+     *                                       the encoding implemented by this class
+     */
+    public function encodeString(string $address): string;
+}