Update to Minecraft 1.16.1

By: md_5 <git@md-5.net>

paper-api/src/main/java/org/bukkit/inventory/InventoryView.java

@@ -370,6 +370,7 @@ public abstract class InventoryView {
                 type = InventoryType.SlotType.CRAFTING;
                 break;
             case ANVIL:
+            case SMITHING:
             case CARTOGRAPHY:
             case GRINDSTONE:
             case MERCHANT:

paper-api/src/main/java/org/bukkit/inventory/SmithingInventory.java

@@ -0,0 +1,6 @@
+package org.bukkit.inventory;
+
+/**
+ * Interface to the inventory of a Smithing table.
+ */
+public interface SmithingInventory extends Inventory { }