add packages

lib/vo/package.dart

@@ -1,3 +1,10 @@
+class Status {
+  String status;
+  DateTime date;
+  bool done;
+  Status({this.status, this.date, this.done});
+}
+
 class Package {
   String id;
   String shipmentNumber;
@@ -9,6 +16,7 @@ class Package {
   String receiverNumber;
   String boxNumber;
   String status;
+  String cargoDesc;
 
   int rate;
   int weight;
@@ -24,6 +32,8 @@ class Package {
       shipmentNumber + "-" + receiverNumber + " #" + boxNumber;
   double get price => rate.toDouble() * weight;
 
+  List<Status> statusHistory;
+
   Package(
       {this.id,
       this.shipmentNumber,
@@ -40,5 +50,7 @@ class Package {
       this.pickUpID,
       this.remark,
       this.status,
-      this.arrivedDate});
+      this.arrivedDate,
+      this.cargoDesc,
+      this.statusHistory});
 }