Added Stockpile entity and implemented ICodeLockable and IPersistence Added StockpileItem definition Add "material" tags to all material items Added placeholder Stockpile model Stockpile icon and recipe Added Unauthorized thought strings Added Structure.AddFoundationsToSet and Structure.FindStockpile (cached, but still shitty) Remove Foundation IsValidPlacement logic Automatically authorize the player who placed the Stockpile Added Player.IsAuthorizedToPlaceAt and add checks for both deployables and structures