TODO:
/**
* Smarty plugin: menu
*
* Binds menu data to a template
*
* @param {array} $params
* $params['page_id']
* $params['menu_id']
* $params['assign_to'] Variable within the template engine to which the content has to be assigned.
*
*
* @example
*
* # EXAMPLE
*
* {menu menu_id="home" assign_to="menu" page_id="85"}
* <ul>
* <h2>My Menu</h2>
* {foreach $menu as $item}
* <li>
* <a href="{$item.url}">{$item.title}</a>
* </li>
* {/foreach}
* </ul>
*
*
* @see http://www.smarty.net/docs/en/plugins.functions.tpl
*
*/