Add some features from symfony's `doctrine/doctrine-bundle`?

- [ ] [`Repository\ContainerRepositoryFactory`](https://github.com/doctrine/DoctrineBundle/blob/master/Repository/ContainerRepositoryFactory.php)
-  ~~[`Registry`](https://github.com/doctrine/DoctrineBundle/blob/master/Registry.php)~~

Does there can add some features, not just factories? 

I'm ready some RP.