add econtrol gasstation view and logic

lib/helper/sample_routes.dart

@@ -1,6 +1,7 @@
 import 'package:get/get.dart';
 import '../pages/detail_view.dart';
 import '../pages/edit_view.dart';
+import '../pages/gasstations_view.dart';
 import '../pages/graph_view.dart';
 import 'sample_bindings.dart';
 import '../pages/home_view.dart';
@@ -40,5 +41,10 @@ class SampleRouts {
       page: () => const GraphPage(),
       binding: sampleBindings,
     ),
+     GetPage(
+      name: GasstationsPage.namedRoute,
+      page: () => const GasstationsPage(),
+      binding: sampleBindings,
+    ),
   ];
 }