Ingest USNIC data

[RogerTangos]

USNIC = United States National Information Service

notes:

• You can find an implementation of this here
• USNIC data is provided in CSV file format. It should be cached locally, but refreshed from the USNIC website if possible
• subsidiary information is available in percentages
• Suggesting brands should probably be out of scope for this ticket. The subsidiary information will make extremely complicated, since multiple brands may exist but be wholly owned by other brands. (i.e. Royal Bank of Scotland is entirely owned and controlled by NatWest)

[skerdilajdhoxha]

Done

[RogerTangos]

tested and closed. Thank you :)