add fcs shipment service

lib/data/services/fcs_shipment_imp.dart

@@ -0,0 +1,31 @@
+import 'package:fcs/data/provider/fcs_shipment_data_provider.dart';
+import 'package:fcs/domain/entities/connectivity.dart';
+import 'package:fcs/domain/entities/fcs_shipment.dart';
+import 'package:flutter/material.dart';
+
+import 'fcs_shipment_service.dart';
+
+class FcsShipmentServiceImp implements FcsShipmentService {
+  FcsShipmentServiceImp({
+    @required this.connectivity,
+    @required this.shipmentDataProvider,
+  });
+
+  final Connectivity connectivity;
+  final FcsShipmentDataProvider shipmentDataProvider;
+
+  @override
+  Future<void> createFcsShipment(FcsShipment fcsShipment) {
+    return shipmentDataProvider.createFcsShipment(fcsShipment);
+  }
+
+  @override
+  Future<void> updateFcsShipment(FcsShipment fcsShipment) {
+    return shipmentDataProvider.updateFcsShipment(fcsShipment);
+  }
+
+  @override
+  Future<void> deleteFcsShipment(FcsShipment fcsShipment) {
+    return shipmentDataProvider.deleteFcsShipment(fcsShipment);
+  }
+}