nssu requirement check function added
nssu requirement check function added

Juniper/py-junos-eznc,spidercensus/py-junos-eznc,pklimai/py-junos-eznc,spidercensus/py-junos-eznc,pklimai/py-junos-eznc,spidercensus/py-junos-eznc,Juniper/py-junos-eznc,pklimai/py-junos-eznc,Juniper/py-junos-eznc