build(aio): migrate plunker to stackblitz (#20165)

PR Close #20165

aio/tools/examples/shared/boilerplate/cli/package.json

@@ -21,6 +21,7 @@
     "@angular/platform-browser": "^5.0.0",
     "@angular/platform-browser-dynamic": "^5.0.0",
     "@angular/router": "^5.0.0",
+    "angular-in-memory-web-api": "~0.5.0",
     "core-js": "^2.4.1",
     "rxjs": "^5.5.2",
     "zone.js": "^0.8.14"

aio/tools/examples/shared/boilerplate/cli/src/polyfills.ts

@@ -50,7 +50,7 @@ import 'core-js/es7/reflect';
  * Required to support Web Animations `@angular/platform-browser/animations`.
  * Needed for: All but Chrome, Firefox and Opera. http://caniuse.com/#feat=web-animation
  **/
-import 'web-animations-js';
+// import 'web-animations-js';