Reset the stats history (dict of GlancesAttribute).

def reset_stats_history(self):
        """Reset the stats history (dict of GlancesAttribute)."""
        if self.history_enable():
            reset_list = [a['name'] for a in self.get_items_history_list()]
            logger.debug("Reset history for plugin {} (items: {})".format(self.plugin_name, reset_list))
            self.stats_history.reset()