Ship Update

- New and improved ship movement and navigation.
- Added a way to show ship path, same as other vehicles.
- Added a way to show ship navigation layer from the Layers menu.
- Added Layers menu.
- Proper ship classification: Small ship – Can navigate 1x1 waterway
Large ship – Can navigate 2x2 waterway
Low ship – Can pass under base-level bridge
- Improved railway placement and overhead line setup.
- Added HUD Filter, to select which icons to display on screen.
- Fixed some problems with vehicle-depot interaction, loading, vehicles can’t stop while partially in a depot.
- Fixed ship duplicating cost.
- Fixed bug being able to restart vehicles waiting at signals/lights.
- Fixed bug not being able to disconnect multi-engine train from depot window.
- Fixed switching order window getting broken.
- Added tool to manually connect or disconnect roads.
- Added option to create one-sided road connection that does not create crossroad (I don’t actually know what these are called in english)