* Fix - Ensure documents can still be manually listed using the shortcode for "Hidden" products * Tweak - Added new shortcode parameter: `[woocommerce_product_documents_list include-hidden="true"]` to allow hidden products to be included in the list
* Fix - Prevent shortcodes from outputting data for products that should not be accessible to the current user
* Misc - Add compatibility for WooCommerce High Performance Order Storage (HPOS)
