adding packages

deprecated/flutter_cli/lib/src/file_reader.dart

@@ -0,0 +1,20 @@
+// Copyright 2017 Google Inc.
+//
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file or at
+// https://developers.google.com/open-source/licenses/bsd
+
+import 'dart:convert';
+import 'dart:io';
+
+class FileReader {
+  static FileReader reader = new FileReader._();
+
+  FileReader._();
+
+  String readAsString(String filePath, {Encoding encoding: utf8}) =>
+      new File(filePath).readAsStringSync(encoding: encoding);
+
+  List<String> readAsLines(String filePath, {Encoding encoding: utf8}) =>
+      new File(filePath).readAsLinesSync(encoding: encoding);
+}