Added 3rd party KH modules

modules/khemail/vendor/swift/classes/Swift/Plugins/Sleeper.php

@@ -0,0 +1,26 @@
+<?php
+
+/*
+ * This file is part of SwiftMailer.
+ * (c) 2004-2009 Chris Corbyn
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Sleeps for a duration of time.
+ * @package Swift
+ * @subpackage Plugins
+ * @author Chris Corbyn
+ */
+interface Swift_Plugins_Sleeper
+{
+  
+  /**
+   * Sleep for $seconds.
+   * @param int $seconds
+   */
+  public function sleep($seconds);
+  
+}