Skip encoding not-implemented item data components

src/main/java/com/loohp/limbo/network/protocol/packets/PacketPlayInSetCreativeSlot.java

@@ -27,8 +27,8 @@ import java.io.IOException;
 
 public class PacketPlayInSetCreativeSlot extends PacketIn {
 
-	private int slotNumber;
-	private ItemStack itemStack;
+	private final int slotNumber;
+	private final ItemStack itemStack;
 
 	public PacketPlayInSetCreativeSlot(int slotNumber, ItemStack itemStack) {
 		this.slotNumber = slotNumber;

src/main/java/com/loohp/limbo/network/protocol/packets/PacketPlayInWindowClick.java

@@ -31,13 +31,13 @@ import java.util.Map;
 
 public class PacketPlayInWindowClick extends PacketIn {
 
-	private int containerId;
-	private int stateId;
-	private int slotNum;
-	private int buttonNum;
-	private InventoryClickType clickType;
-	private Map<Integer, ItemStack> changedSlots;
-	private ItemStack carriedItem;
+	private final int containerId;
+	private final int stateId;
+	private final int slotNum;
+	private final int buttonNum;
+	private final InventoryClickType clickType;
+	private final Map<Integer, ItemStack> changedSlots;
+	private final ItemStack carriedItem;
 
 	public PacketPlayInWindowClick(int containerId, int stateId, int slotNum, int buttonNum, InventoryClickType clickType, Map<Integer, ItemStack> changedSlots, ItemStack carriedItem) {
 		this.containerId = containerId;

src/main/java/com/loohp/limbo/network/protocol/packets/PacketPlayOutSetSlot.java

@@ -28,10 +28,10 @@ import java.io.IOException;
 
 public class PacketPlayOutSetSlot extends PacketOut {
 
-    private int containerId;
-    private int stateId;
-    private int slot;
-    private ItemStack itemStack;
+    private final int containerId;
+    private final int stateId;
+    private final int slot;
+    private final ItemStack itemStack;
 
     public PacketPlayOutSetSlot(int containerId, int stateId, int slot, ItemStack itemStack) {
         this.containerId = containerId;