Initial Fluid Integration (#3510)

* Added Fluid Storage Cells

* Added Fluid Import Bus

* Added Fluid Export Bus

* Added Fluid Storage Bus

* Added Fluid Terminal.
While holding a item with the FLUID_HANDLER_ITEM_CAPABILITY, such as a tank
Left click on a fluid to extract the fluid
Right click to insert the fluid

src/main/java/appeng/container/slot/OptionalSlotFake.java

@@ -25,7 +25,7 @@ import net.minecraft.item.ItemStack;
 import net.minecraftforge.items.IItemHandler;
 
 
-public class OptionalSlotFake extends SlotFake
+public class OptionalSlotFake extends SlotFake implements IOptionalSlot
 {
 
 	private final int srcX;
@@ -69,12 +69,8 @@ public class OptionalSlotFake extends SlotFake
 		return this.host.isSlotEnabled( this.groupNum );
 	}
 
-	public boolean renderDisabled()
-	{
-		return this.isRenderDisabled();
-	}
-
-	private boolean isRenderDisabled()
+	@Override
+	public boolean isRenderDisabled()
 	{
 		return this.renderDisabled;
 	}