Remove the vendor directory in .gitignore as these dependencies are needed for php-imap

plugins/php-imap/vendor/illuminate/contracts/Queue/EntityResolver.php

@@ -0,0 +1,15 @@
+<?php
+
+namespace Illuminate\Contracts\Queue;
+
+interface EntityResolver
+{
+    /**
+     * Resolve the entity for the given ID.
+     *
+     * @param  string  $type
+     * @param  mixed  $id
+     * @return mixed
+     */
+    public function resolve($type, $id);
+}