Add CookTimeTotal API to Furnace

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

paper-server/src/main/java/org/bukkit/craftbukkit/block/CraftFurnace.java

@@ -55,6 +55,16 @@ public class CraftFurnace extends CraftContainer<TileEntityFurnace> implements F
         this.getSnapshot().setProperty(2, cookTime);
     }
 
+    @Override
+    public int getCookTimeTotal() {
+        return this.getSnapshot().getProperty(3);
+    }
+
+    @Override
+    public void setCookTimeTotal(int cookTimeTotal) {
+        this.getSnapshot().setProperty(3, cookTimeTotal);
+    }
+
     @Override
     public String getCustomName() {
         TileEntityFurnace furnace = this.getSnapshot();