allow interface itemstack handler to accept over sized stacks

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

@@ -27,4 +27,9 @@ public class SlotFakeCraftingMatrix extends SlotFake {
     public SlotFakeCraftingMatrix(final IItemHandler inv, final int idx, final int x, final int y) {
         super(inv, idx, x, y);
     }
+
+    @Override
+    public int getSlotStackLimit() {
+        return Integer.MAX_VALUE;
+    }
 }