Canteen Addition - v0.5.0.32

Now have the canteen added, allowing your human workers a more social place to eat. This will give a morale boost, over eating elsewhere. Canteen also stores food, so is a new haul destination for food supplies.

A few fixes as well (mainly with save files), full patch notes:-

Notes:-

• Canteen added as destination to eat, and food haul destination.
  
• Humans get a morale bonus if eating at canteen.
  
• Fix: Crew quarters not updating assigned human id on load game.
  
• Fix: Saving then loading game could reload the save, depending on save slot order.
  
• Fix: Station builder mode, disable droids (could move giving issue with station save storing a path).
  
• Fix: Airlock would lose connected floor tile on loading previous save.