Port fixes for multiplayer dsync from Pioners fork

Describe @pionere has a lot of interesting in his port, one of the major parts is some new network update logic to reduce desync

This is mainly done via the following commit: https://github.com/diasurgical/devilutionX/commit/bcbef3afa45e36cbe4fc233ff8261553bf25073e

Porting this is complicated a bit by large part of the fork still using an holder iteration of the code and a different code style, but it should still be reasonably to do so.

Steps

1. Go over the commit and get a good feel for the semantic changes, and separate it from the style changes.
2. Start applying the same changes to the code
3. Run two clients on your local system and run a TCP game where you test multiplayer works as intended
4. Create a pull request with the backported code

Expected behavior It might be a good idea to also test this on the fork before starting the process to get a good feel for how it works and now to verify it.