Fuzzy match the fallback whitelist
We can rely on Onionoo to tell us when relay fingerprints or addresses change, so we don't need to do an exact match.
But listing fingerprints, addresses and ports in the whitelist is useful so that we know what a relay operator originally asked for.
Fuzzy matching simplifies maintaining the fallback whitelist, because we don't have to ask operators to update their relay details. (Or ask if those details are permanent.)
We deleted the blacklist in legacy/trac#26502 (moved).