Read Address -> Name map from a config file

[gakonst]

It'd be nice if we could have access to Etherscan-like mapping of addr->name, instead of doing it manually/slowly ourselves https://github.com/flashbots/mev-inspect-rs/blob/master/src/addresses.rs#L112-L188. This could easily be done with the CSV crate, as shown here

[juanobligado]

@gakonst Is this issue still relevant? Looking for a good issue for starters.