Merge #16202: p2p: Refactor network message deserialization

ed2dc5e48abed1cde6ab98025dc8212917d47d21 Add override/final modifiers to V1TransportDeserializer (Pieter Wuille)
f342a5e61a73e1edf389b662d265d20cf26a1d51 Make resetting implicit in TransportDeserializer::Read() (Pieter Wuille)
6a91499496d76c2b3e84489e9723b60514fb08db Remove oversized message detection from log and interface (Pieter Wuille)
b0e10ff4df3d4c70fb172ea8c3128c82e6e368bb Force CNetMessage::m_recv to use std::move (Jonas Schnelli)
efecb74677222f6c70adf7f860c315f430d39ec4 Use adapter pattern for the network deserializer (Jonas Schnelli)
1a5c656c3169ba525f84145d19ce8c64f2cf1efb Remove transport protocol knowhow from CNetMessage / net processing (Jonas Schnelli)
6294ecdb8bb4eb7049a18c721ee8cb4a53d80a06 Refactor: split network transport deserializing from message container (Jonas Schnelli)

Pull request description:

  **This refactors the network message deserialization.**

  * It transforms the `CNetMessage` into a transport protocol agnostic message container.
  * A new class `TransportDeserializer` (unique pointer of `CNode`)  is introduced, handling the network buffer reading and the decomposing to a `CNetMessage`
  * **No behavioral changes** (in terms of disconnecting, punishing)
  * Moves the checksum finalizing into the `SocketHandler` thread (finalizing was in `ProcessMessages` before)

  The **optional last commit** makes the `TransportDeserializer` following an adapter pattern (polymorphic interface) to make it easier to later add a V2 transport protocol deserializer.

  Intentionally not touching the sending part.

  Pre-Requirement for BIP324 (v2 message transport protocol).
  Replacement for #14046 and inspired by a [comment](https://github.com/bitcoin/bitcoin/pull/14046#issuecomment-431528330) from sipa

ACKs for top commit:
  promag:
    Code review ACK ed2dc5e48abed1cde6ab98025dc8212917d47d21.
  marcinja:
    Code review ACK ed2dc5e48abed1cde6ab98025dc8212917d47d21
  ryanofsky:
    Code review ACK ed2dc5e48abed1cde6ab98025dc8212917d47d21. 4 cleanup commits added since last review. Unaddressed comments:
  ariard:
    Code review and tested ACK ed2dc5e.

Tree-SHA512: bab8d87464e2e8742529e488ddcdc8650f0c2025c9130913df00a0b17ecdb9a525061cbbbd0de0251b76bf75a8edb72e3ad0dbf5b79e26f2ad05d61b4e4ded6d

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