add route_origin_rpki_validity field
motivation:
- bring routing security awareness and indicators to relay operators
- increase routing security by encouraging relay operators to ask their ISPs for properly configured prefixes
context: https://medium.com/@nusenu/how-vulnerable-is-the-tor-network-to-bgp-hijacking-attacks-56d3b2ebfd92
this field should contain the following information:
- RPKI ROA validity state for IPv4 and IPv6 (enum: NotFound, Invalid, Valid)
- invalid reason for IPv4 and IPv6 (enum: 'as', 'length')
validator software by RIPE (alternatively you can use RIPEstat, but running it yourself is likely a lot faster) https://www.ripe.net/manage-ips-and-asns/resource-management/certification/tools-and-resources
depends on: #27155 (moved)
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