Forgeworks: Create Smithing

Forgeworks 1.0.1: ballista fixes.

• Stocks and rails placed by hand now link together, so the ballista assembles. Fixes "Cannon must have exactly one opening and exactly one closed end".
• Right-click the seat cushion with an empty hand to sit in the ballista.
• Hold left click in the seat to fire. A lever on the front of the cannon mount is no longer needed.
• A Create Seat goes on with one right-click on the stock or any rail. No wrench needed.
• Right-clicking a ballista that isn't put together yet no longer takes its seat off. It tells you to power the cannon mount. Sneak-click still takes the seat off.
• A rail can now be placed against a stock that already has a seat.
• Stocks and rails always sit level and line up with the rest of the ballista when placed.