Migrating parts of the Godot Modules project over to this project

[valkyrienyanko]

Despite the project "Godot Modules" having "Modules" in the name, it is not very modular as it is very hard to extract certain parts of it out like for example the options scripts to merge them in with another project.

Link to Godot Modules project https://github.com/GodotModules/GodotModulesCSharp

I would like to take the option scripts and maybe a few other things and merge them in with this project.

[valkyrienyanko]

Closing as most of this is done already, all that is left is migrating over the menu options but since that is so different with dependency injection I might as well do it over from scratch.