#802: Add methods to modify despawn delay for wandering villagers

By: DiamondDagger590 <diamonddagger590@gmail.com>

paper-server/src/main/java/org/bukkit/craftbukkit/entity/CraftWanderingTrader.java

@@ -25,4 +25,14 @@ public class CraftWanderingTrader extends CraftAbstractVillager implements Wande
     public EntityType getType() {
         return EntityType.WANDERING_TRADER;
     }
+
+    @Override
+    public int getDespawnDelay() {
+        return getHandle().eX();
+    }
+
+    @Override
+    public void setDespawnDelay(int despawnDelay) {
+        getHandle().u(despawnDelay);
+    }
 }