public Container renderer(String id, Class<? extends Renderer> renderer, ConfigInstance... configs) {
                renderers.add(new ComponentItem<>(id, renderer, configs));
                return this;
            }
@param id       component id, enable template with ?format=id or ?presentation.format=id
@param renderer add this renderer
@param configs  local renderer configs
@return builder
application/src/main/java/com/yahoo/application/Application.java