SonataUserBundle bundle-inherit FOSUserBundle, so that TmsUserBundle can override templates
template override: SonataUserBundle:Admin/Core:user_block.html.twig
override standard layout so that it does not depends on admin_pool unless neccessary
use twig globals for header info such as title and logo image_url
remove unused and compromising routes
FOSUserBundle's views to extend sonata admin standard_layout