feat(maps): add the gmaps and the leaflet component pages

src/app/pages/maps/maps-routing.module.ts

@@ -0,0 +1,30 @@
+import { NgModule } from '@angular/core';
+import { Routes, RouterModule } from '@angular/router';
+
+import { MapsComponent } from './maps.component';
+import { GmapsComponent } from './gmaps/gmaps.component';
+import { LeafletComponent } from './leaflet/leaflet.component';
+
+const routes: Routes = [{
+  path: '',
+  component: MapsComponent,
+  children: [{
+    path: 'gmaps',
+    component: GmapsComponent,
+  }, {
+    path: 'leaflet',
+    component: LeafletComponent,
+  }],
+}];
+
+@NgModule({
+  imports: [RouterModule.forChild(routes)],
+  exports: [RouterModule],
+})
+export class MapsRoutingModule { }
+
+export const routedComponents = [
+  MapsComponent,
+  GmapsComponent,
+  LeafletComponent,
+];