Added locked furnace and 3D bronze armor & gold shovel

The locked furnace does not work with the old mod, only with games that included them. Because the path is different. 

We could add a link from one path to the other, but windows doesn't support linux links. So we could copy the file but that increases the TP size.

Now:
default_furnace_lock.png 
default_furnace_lock_active.png 

What the mod expects: 
locked_furnace_furnace_lock_front_active.png
locked_furnace_furnace_lock_front.png       


Edit: github appended the newest commit, wanted to separate them, but here is the shovel. :)