Add ItemStack#getTranslationKey() (#5616)

Spigot-Server-Patches/Expose-protocol-version.patch

@@ -9,14 +9,14 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 --- a/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
 +++ b/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
 @@ -0,0 +0,0 @@ public final class CraftMagicNumbers implements UnsafeValues {
+     public io.papermc.paper.inventory.ItemRarity getItemStackRarity(org.bukkit.inventory.ItemStack itemStack) {
          return io.papermc.paper.inventory.ItemRarity.values()[getItem(itemStack.getType()).getItemStackRarity(CraftItemStack.asNMSCopy(itemStack)).ordinal()];
      }
- 
++
 +    @Override
 +    public int getProtocolVersion() {
 +        return net.minecraft.SharedConstants.getGameVersion().getProtocolVersion();
 +    }
-+
      // Paper end
  
      /**