Track items and their workorders.

src/engine/objects/NPC.java

@@ -15,6 +15,7 @@ import engine.gameManager.*;
 import engine.job.JobContainer;
 import engine.job.JobScheduler;
 import engine.jobs.UpgradeNPCJob;
+import engine.loot.WorkOrder;
 import engine.math.Bounds;
 import engine.math.Vector3f;
 import engine.math.Vector3fImmutable;
@@ -78,6 +79,7 @@ public class NPC extends AbstractCharacter {
     public int parentZoneUUID;
     public int equipmentSetID = 0;
     private int repairCost = 5;
+    ArrayList<WorkOrder> workOrders = new ArrayList<>();
 
     // New NPC constructor.  Fill in the blanks and then call
     // PERSIST.