Instantiates a new instance of this controller.
This is a factory method that returns a new instance of this object. The factory should pass any needed dependencies into the constructor of this object, but not the container itself. Every call to this method must return a new instance of this object; that is, it may not implement a singleton.
\Symfony\Component\DependencyInjection\ContainerInterface $container: The service container this object should use.
Overrides ControllerInterface::create
public static function create(ContainerInterface $container) {
return new static($container
->get('config.factory'), $container
->get('config.context.free'));
}