pack up found items for search ctrl
            :param target: treectrl obj
            :param s_text: text to search, lower case
            return list of found items

def pack_found_items(self, s_text, target):
        """ pack up found items for search ctrl
            :param target: treectrl obj
            :param s_text: text to search, lower case
            return list of found items
        """
        all_children = self.all_children
        all_text = [target.GetItemText(i).lower() for i in all_children]

        found_items = [child for i, child in enumerate(all_children)
                       if s_text in all_text[i]]

        return found_items