Rails of War

RailsOfWar-1.12.2-1901-5o
Forge-1.12.2-14.23.4.2705+

This build primarily focuses the train bugs.
- Couplers should now be saved and loaded on world reload correctly.
- Train motion should be smooth, without any minor jitter.

The build also adds experimental non-45° curves which allow bigger radius under same curve span, as well as the combined tool for placing curved, straight and sloped tracks.