Bunker Structures

• Added 5x Bunker Houses to the player structures that Structure Traders can craft.
• Each bunker will take up 4 Lots and cost 35 credits per hour in maintenance fees.
• Bunkers have a base item limit of 2,000.
• Bunkers will take about the same amount of resources as a Large House.
• Each bunker has a unique interior design. Only one of the bunkers (Bunker 4) has a different exterior design as well, otherwise they all have the grey block exterior look.
• Player Bunkers now have the correct maintenance of 30 credits / hour.
• Player Bunkers now have their signs showing (only default sign is available).
• Player Bunkers are now considered guild halls so you can withdraw maintenance and use them as a guild hall.