blog_channels: add forgotten ncd_from_string, ncd_to_string
blog_channels: add forgotten ncd_from_string, ncd_to_string

DavidCox1979/badvpn,DavidCox1979/badvpn,DavidCox1979/badvpn,DavidCox1979/badvpn,DavidCox1979/badvpn