First group of routing examples

example/angular/routing/setting_up_a_default_view/my_router.dart

+library my_router;
+
+import 'package:angular/angular.dart';
+
+class MyRouteInitializer implements RouteInitializer {
+  init(Router router, ViewFactory view) {
+    router.root
+      ..addRoute(
+          name: 'hello',
+          path: '/hello',
+          enter: view('views/hello.html'))
+      ..addRoute(
+          name: 'default',
+          path: '/default',
+          defaultRoute: true,
+          enter: view('views/default.html'));
+  }
+}