Added 3rd party KH modules

modules/khemail/vendor/swift/classes/Swift/Mime/EncodingObserver.php

@@ -0,0 +1,28 @@
+<?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.
+ */
+
+//@require 'Swift/Mime/ContentEncoder.php';
+
+/**
+ * Observes changes for a Mime entity's ContentEncoder.
+ * @package Swift
+ * @subpackage Mime
+ * @author Chris Corbyn
+ */
+interface Swift_Mime_EncodingObserver
+{
+  
+  /**
+   * Notify this observer that the observed entity's ContentEncoder has changed.
+   * @param Swift_Mime_ContentEncoder $encoder
+   */
+  public function encoderChanged(Swift_Mime_ContentEncoder $encoder);
+  
+}