test(tabs): add lazy load ng-router angular tabs

angular/test/nav/src/app/lazy-load-tabs/tabs-routing.module.ts

@@ -0,0 +1,44 @@
+import { NgModule } from '@angular/core';
+import { Routes, RouterModule } from '@angular/router';
+
+import { IonicModule } from '@ionic/angular';
+import { TabsPageComponent } from './tabs.component';
+
+const routes: Routes = [
+  {
+    path: 'tabs',
+    component: TabsPageComponent,
+    children: [
+      {
+        path: 'mustang',
+        outlet: 'tab1',
+        loadChildren: 'app/lazy-load-tabs/mustang/mustang.module#MustangModule'
+      },
+      {
+        path: 'camaro',
+        outlet: 'tab2',
+        loadChildren: 'app/lazy-load-tabs/camaro/camaro.module#CamaroModule'
+      },
+      {
+        path: 'charger',
+        outlet: 'tab3',
+        loadChildren: 'app/lazy-load-tabs/charger/charger.module#ChargerModule'
+      }
+    ]
+  },
+  {
+    path: '',
+    redirectTo: '/lazy-load-tabs/tabs/(tab1:mustang)'
+  }
+];
+
+
+@NgModule({
+  imports: [
+    RouterModule.forChild(routes)
+  ],
+  exports: [
+    RouterModule
+  ]
+})
+export class TabsRoutingModule { }