Move to more PSR-4 standards.

lib/OpenPgP/MarkerPacket.php

@@ -0,0 +1,14 @@
+<?php
+
+namespace Leenooks\OpenPGP;
+
+/**
+ * OpenPGP Marker packet (tag 10).
+ *
+ * @see http://tools.ietf.org/html/rfc4880#section-5.8
+ */
+class MarkerPacket extends Packet
+{
+	// TODO
+	protected $tag = 10;
+}