Overhaul engine code

[KemGus]

1. Current engine code doesn't let anyone in. It is awful and coded very bad, yet it works
2. There are known issues that are hard to fix(like the tickrate issues), that are limiting ACE quite a lot
   Here is an example of a function being named wrong, yet collecting other code that must have been split up in other functions
   https://github.com/RedDeadlyCreeper/ArmoredCombatExtended/blob/190d60e3c5e3e9c7ec61c98787f86ffe225abac0/lua/entities/acf_engine/init.lua#L524C1-L524C1

Possible ways of approaching this problem:

1. Easy way
   Using existing code, just restructure the code and see if it just works. I believe this is the most simple way to do it.

2. Hard way
   Start from scratch, yet using physics and math and engine calculations as real as possible