JsonApiView is hard-coded: make it configurable

[geoidesic]

There may be instances where it is desirable to be able to configure a custom view. Currently this is only possible using an override of the render method in JsonApiListener. Would be better via config.

I.e. edit JsonApiListener

        // Use the Crud component's config instead of listener config
        $viewClass = $controller->Crud->getConfig('viewClass', 'CrudJsonApi.JsonApi');
        $controller->viewBuilder()->setClassName($viewClass);