[CentOS-mirror] New public mirror for Brazil

HTTP: http://mirror.nbtelecom.com.br/centos/
HTTPS: https://mirror.nbtelecom.com.br/centos/
RSYNC: rsync://mirror.nbtelecom.com.br/centos/
Sync schedule: Every 1 hrs
Bandwidth: 100G
Location: Brazil / Rio de Janeiro
Sponsor: NB Telecom
Sponsor URL: http://www.nbtelecom.com.br
IPv4 address to authorize: 189.45.5.90
IPv6 address to authorize: 2804:74::189:45:5:90,2804:74::189:45:5:76
Email contact: noc at nbtelecom.com.br
Mirroring AltArch: no