e09bdb5f98 Add BIP324 V2 p2p network message support (Nick Johnson)
Pull request description:
Migrating over the BIP324's library's V2 network message encoding and decoding. As discussed over in https://github.com/rust-bitcoin/rust-bitcoin/discussions/2959, this is probably the natural home for it and also cleans up some gross copy/pasta of some of the encoding/decoding chain logic.
This patch adds `V2NetworkMessage` which wraps a `NetworkMessage`, but handles the V2 encoding and decoding. It is a parallel of the existing `RawNetworkMessage` (which mentioned before, may be better described as `V1NetworkMessage` https://github.com/rust-bitcoin/rust-bitcoin/issues/3157). A priority of this patch was to not re-invent any wheels and try to use the existing patterns as much as possible.
ACKs for top commit:
tcharding:
ACK e09bdb5f98
apoelstra:
ACK e09bdb5f98ea516382a04283373ad97a41d57c2b; successfully ran local tests; nice!
Tree-SHA512: a5078d4d3deb04c2e06ea513bbc8c97d0e6d5da5b029847a97b3f90bf55a263858dd16d88299f853aa3c468f7b9bceb3973c5652a49d3e96df3e91181b455f29
653ea702d6