TODO:
/**
* Smarty plugin: page
*
* @param {array} $params
* $params['post_name'] Post/page slug name
* $params['type'] Response data type
* $params['assign_to'] Variable withing the template engine to which the content has to be assinged.
*
* @example
*
* EXAMPLE #1:
* {page post_name="about-us" assign_to="about_page"}
*
*/