Add vendor and .env to make usable

vendor/symfony/http-foundation/Session/Storage/Handler/NativeSessionHandler.php

@@ -0,0 +1,24 @@
+<?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\Component\HttpFoundation\Session\Storage\Handler;
+
+/**
+ * @deprecated since version 3.4, to be removed in 4.0. Use \SessionHandler instead.
+ * @see http://php.net/sessionhandler
+ */
+class NativeSessionHandler extends \SessionHandler
+{
+    public function __construct()
+    {
+        @trigger_error('The '.__NAMESPACE__.'\NativeSessionHandler class is deprecated since Symfony 3.4 and will be removed in 4.0. Use the \SessionHandler class instead.', E_USER_DEPRECATED);
+    }
+}