Rewrote all default modifiers and functions from the plugins folder to PSR-4 classes

docs/programmers/plugins/plugins-inserts.md

@@ -1,48 +0,0 @@
-Inserts {#plugins.inserts}
-=======
-
-Insert plugins are used to implement functions that are invoked by
-[`{insert}`](#language.function.insert) tags in the template.
-
-string
-
-smarty\_insert\_
-
-name
-
-array
-
-\$params
-
-object
-
-\$template
-
-The first parameter to the function is an associative array of
-attributes passed to the insert.
-
-The insert function is supposed to return the result which will be
-substituted in place of the `{insert}` tag in the template.
-
-
-    <?php
-    /*
-     * Smarty plugin
-     * -------------------------------------------------------------
-     * File:     insert.time.php
-     * Type:     time
-     * Name:     time
-     * Purpose:  Inserts current date/time according to format
-     * -------------------------------------------------------------
-     */
-    function smarty_insert_time($params, \Smarty\Template\ $template)
-    {
-        if (empty($params['format'])) {
-            trigger_error("insert time: missing 'format' parameter");
-            return;
-        }
-        return strftime($params['format']);
-    }
-    ?>
-
-