Libp2p.IdentifyPB (libp2p_elixir v0.9.0)
Protobuf encoding/decoding for the Identify message.
This targets /ipfs/id/1.0.0 and implements the classic fields:
(field numbers per identify/src/generated/structs.proto in rust-libp2p)
1 publicKey (bytes) -- libp2p-crypto PublicKey protobuf
2 listenAddrs (repeated bytes) -- multiaddr bytes
3 protocols (repeated string)
4 observedAddr (bytes) -- multiaddr bytes
5 protocolVersion (string)
6 agentVersion (string)
8 signedPeerRecord (bytes) -- optional (ignored for now)