* Add modern menu.
Add and include LUS cvars .cmake file for macro usage in modern menu.
* Un-ignore new .cmake
* Copy new Resolution Editor stuff from 2ship (incomplete).
Fix fullscreen checkbox.
Finish changes for new UIWidgets.
Cleanup ShipUtils.
* Remove duplicate asm-differ entry from .gitmodules.
* Re-implement Freecam options.
* Cleanup freecam character follow buttons.
Partially re-implement Multiplayer window as enhancement sidebar (needs text input widget to finish).
Cleanup disables.
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Co-authored-by: MegaMech <MegaMech@users.noreply.github.com>
Malkierian