Transfer gui code to lua where possible

[Moneyl]

Currently all of the overlay GUIs are written in C++. They should be transferred to lua for a few reasons:

• Allows for live editing / live reload of guis
• Anyone can edit or update them
• It will make the c++ code smaller and more purposeful, rather than having a bunch of gui logic spread around it.

This issue can be split into a few parts:

• Bind Dear ImGui, the library used for overlay guis, to lua.
• Rewrite guis in lua
• Provide a way for guis to determine how they should be displayed. By default they should just be toggled with the gui key, currently F1. But they should also be able to set custom behavior for set like how the lua console has a separate key to toggle it.