Add `pkinit-status` command
    
    This command is a more streamlined reporting tool for PKINIT feature
    status in the FreeIPA topology. It prints out whether PKINIT is enabled
    or disabled on individual masters in a topology. If a`--server` is
    specified, it reports status for an individual server. If `--status` is
    specified, it searches for all servers that have PKINIT enabled or
    disabled.
    
    https://pagure.io/freeipa/issue/6937
    
    Reviewed-By: Jan Cholasta <jcholast@redhat.com>
    Reviewed-By: Stanislav Laznicka <slaznick@redhat.com>