Initial commit of Session/Authentication code

Plugin architecture with single Database-backed implementation.

source/lib/SihnonFramework/Auth/Plugin/Database/Permission.class.php

@@ -0,0 +1,20 @@
+<?php
+
+class SihnonFramework_Auth_Plugin_Database_Permission extends Sihnon_DatabaseObject {
+    
+    /*
+     * Built-in permissions
+     */
+    
+    // The Administrator permission always exists, and is always offers the most functionality
+    // This maps to the isAdministrator method for coarse-grained permissions.
+    const PERM_Administrator = 1;
+    
+    protected static $table = 'permission';
+    
+    protected $_db_id;
+    protected $_db_name;
+    protected $_db_description;
+    
+    
+}