Implement buying from mall shop

src/main/java/emu/nebula/data/resources/MallPackageDef.java

@@ -4,6 +4,7 @@ import com.google.gson.annotations.SerializedName;
 
 import emu.nebula.data.BaseDef;
 import emu.nebula.data.ResourceType;
+import emu.nebula.game.inventory.ItemParamMap;
 import lombok.Getter;
 
 @Getter
@@ -15,9 +16,17 @@ public class MallPackageDef extends BaseDef {
     private int CurrencyType;
     private int CurrencyItemId;
     private int CurrencyItemQty;
+    private String Items;
+    
+    private transient ItemParamMap products;
     
     @Override
     public int getId() {
         return IdString.hashCode();
     }
+    
+    @Override
+    public void onLoad() {
+        this.products = ItemParamMap.fromJsonString(this.Items);
+    }
 }