Port the route filters pass from drupal into the component. Left over from #70

see http://drupalcode.org/project/drupal.git/blob/refs/heads/8.x:/core/lib/Drupal/Core/DependencyInjection/Compiler/RegisterRouteFiltersPass.php
btw, why is there no priorities on the filters pass? the enhancer and router passes do have priorities. for performance reasons, priorities could also be important here.

when we do that, don't forget to enable the pass in the CmfRoutingBundle

/cc @Crell