20779bdbc8 Move `p2p` encodings out of `encode` (rustaceanrob)
94bcff28b1 p2p: Add wrappers for messages that use `Vec` (rustaceanrob)
Pull request description:
To move `p2p` into a crate:
1. All `Encodable` implementations for `p2p` must be defined in `p2p`. To accomplish this, and anything else in the future related to encoding, I added a `deser` module with the necessary macro to implement `Encodable` for `Vec<T> where T: Encodable`.
2. Because the orphan rule would apply for implementing `Encodable`for `Vec` within `p2p`, three types defined within `p2p` are used to wrap the `Vec` and snake around the orphan rule.
ACKs for top commit:
tcharding:
ACK 20779bdbc8
apoelstra:
ACK 20779bdbc8ebcac2365d122e857c23b3d8e8d1e7; successfully ran local tests
Tree-SHA512: 7abfe5b853e84bb465579309f80a0687c325217f6f342651278bedf540c4d17ae16683ab02dea5e3d98d90790deb12c6bc7d572a92cec8e19ff94e395bc0d29c
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