Adding Angular and dependent packages for testing

third_party/pkg/route_hierarchical/example/full/data.dart

+/**
+ * Mock implementation of the data service library.
+ */
+library dataservice;
+
+import 'dart:async';
+
+// List of fake companies
+List _companies = [
+  {
+    'id': 100001,
+    'name': 'Company 100001',
+    'revenue': 3000000.00
+  },
+  {
+    'id': 111111,
+    'name': 'Company 1111111',
+    'revenue': 1001100.00
+  },
+  {
+    'id': 100003,
+    'name': 'Mom & Pop Shop',
+    'revenue': 201000.00
+  },
+  {
+    'id': 333333,
+    'name': 'Sunny & Bob',
+    'revenue': 301000.00
+  },
+  {
+    'id': 444444,
+    'name': 'Sun In the Sky Inc.',
+    'revenue': 5001000.00
+  },
+  {
+    'id': 555555,
+    'name': 'Sunny Java',
+    'revenue': 401000.00
+  }
+];
+
+/// simulate an RPC call to fetch companies
+Future<List<Map>> fetchCompanies(String query) =>
+    new Future.delayed(new Duration(milliseconds: 500), () =>
+        _companies.where((company) =>
+            company['name'].toLowerCase().indexOf(query.toLowerCase()) > -1));
+
+/// simulate an RPC call to fetch a company
+Future<Map> fetchCompany(int id) =>
+     new Future.delayed(new Duration(seconds: 1), () =>
+          _companies.firstWhere((c) => c['id'] == id, orElse: () => null));