Relocate Source to proper directory.

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

@@ -0,0 +1,23 @@
+package appeng.container.slot;
+
+import net.minecraft.inventory.IInventory;
+import net.minecraft.item.ItemStack;
+import appeng.container.implementations.ContainerMAC;
+
+public class SlotMACPattern extends AppEngSlot
+{
+
+	ContainerMAC mac;
+
+	public SlotMACPattern(ContainerMAC mac, IInventory i, int slotIdx, int x, int y) {
+		super( i, slotIdx, x, y );
+		this.mac = mac;
+	}
+
+	@Override
+	public boolean isItemValid(ItemStack i)
+	{
+		return mac.isValidItemForSlot( this.getSlotIndex(), i );
+	}
+
+}