d9cf7270eb Move `bitcoin/p2p` into `p2p` (rustaceanrob)
Pull request description:
Could use a rebase on #4568
Somehow lost the branch of my original draft so some of the review context is removed, but all comments were addressed in separate PRs.
First commit moves everything required to implement encoding within `p2p`, so we have a reference for functions to add to future moves to `internals`. Second commit does the relocation and third commit removes the `bitcoin/p2p` module.
ACKs for top commit:
apoelstra:
ACK d9cf7270eb457fd660fa505701895ab4756e394d; successfully ran local tests
tcharding:
ACK d9cf7270eb
Tree-SHA512: 31bf960788f45bb60b04dd73793a06828a5540e1e6118376776494bad9330dc8ebcb57749bc84b70a00e4d1d2a5686506e089269833ed99c4f9fa0c3e3b2e5b7
5743a81128