Add rcube_plugin_api::get_plugin() method

program/lib/Roundcube/rcube_plugin_api.php

@@ -625,6 +625,16 @@ class rcube_plugin_api
         return array_keys($this->plugins);
     }
 
+    /**
+     * Returns loaded plugin
+     *
+     * @return rcube_plugin Plugin instance
+     */
+    public function get_plugin($name)
+    {
+        return $this->plugins[$name];
+    }
+
     /**
      * Callback for template_container hooks
      *