Added vendor directory to source control

vendor/symfony/http-client-contracts/Exception/ClientExceptionInterface.php

@@ -0,0 +1,21 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Contracts\HttpClient\Exception;
+
+/**
+ * When a 4xx response is returned.
+ *
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+interface ClientExceptionInterface extends HttpExceptionInterface
+{
+}