Implement Milestone 1 Gossip Source

[frisitano]

Overview

As part of milestone 1, we will implement an RLPx gossip protocol. The current implementation of the scroll rollup uses the eth wire protocol to gossip blocks. As such we need to implement a temporary component that listens for blocks on the eth-wire-protocol and then pushes them to the RLPx protocol.

[frisitano]

The bridge is a leech on the network as it does not respond to requests from peers and they ultimately drop the connection. We may want to consider only connecting to a predefined list of nodes for which we are a trusted peer and will not be banned for undelivered request responses.