Added the following items to the Item Database:
Wooden Barricade,
Barbed Wooden Barricade,
Stone Barricade,
Sandbag Barricade,
Concrete Barricade,
Metal Barricade.
Optimizations for the ground checks while building
Fixed twig build part destruction missing the texture alpha data
Added a food vending machine at Outpost
Buffed most food items
Some food items now give health over time, instead of instant health
Mushrooms now give a small amount of instant health