feat(aio): add <current-location> embedded component (#16139)

aio/src/app/embedded/current-location.component.ts

@@ -0,0 +1,15 @@
+/* tslint:disable component-selector */
+import { Component } from '@angular/core';
+import { LocationService } from 'app/shared/location.service';
+
+/**
+ * A simple embedded component that displays the current location path
+ */
+@Component({
+  selector: 'current-location',
+  template: '{{location.path()}}'
+})
+export class CurrentLocationComponent {
+  constructor(public location: LocationService) {
+  }
+}