insert shipment form

lib/app.dart

@@ -1,3 +1,4 @@
+import 'package:fcs/model/shipment_model.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_localizations/flutter_localizations.dart';
 import 'package:provider/provider.dart';
@@ -63,6 +64,7 @@ class _AppState extends State<App> {
   final ReportUserModel reportUserModel = new ReportUserModel();
   final PickUpModel pickUpModel = new PickUpModel();
   final ShipmentRateModel shipmentRateModel = new ShipmentRateModel();
+  final ShipmentModel shipmentModel = new ShipmentModel();
 
   AppTranslationsDelegate _newLocaleDelegate;
 
@@ -94,7 +96,8 @@ class _AppState extends State<App> {
       ..addModel(testModel)
       ..addModel(reportUserModel)
       ..addModel(pickUpModel)
-      ..addModel(shipmentRateModel);
+      ..addModel(shipmentRateModel)
+      ..addModel(shipmentModel);
     this.mainModel.init();
   }
 
@@ -145,6 +148,7 @@ class _AppState extends State<App> {
         ChangeNotifierProvider(builder: (context) => reportUserModel),
         ChangeNotifierProvider(builder: (context) => pickUpModel),
         ChangeNotifierProvider(builder: (context) => shipmentRateModel),
+        ChangeNotifierProvider(builder: (context) => shipmentModel),
         ChangeNotifierProvider(
           builder: (context) => testModel,
         ),