Add a way to disable the wrong game version popup

[xen-42]

Mod loading still works on 1.1.11, it just messes up the mod config menus. Annoying to have to click yes every time (some speedrunners still run older game versions but want to use mods as tools for learning their routes).

Could add it as a OWML config setting and have the manager be able to enable/disable it.

Would have to add the check here: