Create separate systemd-resolved package
    
    Move systemd-resolved daemon and related tools to its own subpackage.
    Keep only nss-resolve in systemd, the service itself is moved to
    subpackage. It has quite different functionality than systemd package
    and deserves own package.
    
    Still recommend resolved from main package
    
    Keep backward compatibility and still recommend systemd-resolved. Allow
    removal, but would be installed by default.