Moved to a system using variadic templates, shared with CallableBind.
New code is cleaner, faster and allows for much better optimization of core
type functions from GDScript and GDNative.
Added Variant::InternalMethod function for direct call access.
- Moved Localization and InputMap editor code to separate files.
- Removed empty method _item_checked from project_settings_editor.
- Reordered some code for better readability.