Move sky/examples to sky/sdk/lib/example, and code changes to support that change. Fixes T277.

sky/examples/game/main.dart

Index: sky/examples/game/main.dart
diff --git a/sky/examples/game/main.dart b/sky/examples/game/main.dart
deleted file mode 100644
index 15fb88e61f260d68430cb7772a5983924c2c4bfc..0000000000000000000000000000000000000000
--- a/sky/examples/game/main.dart
+++ /dev/null
@@ -1,58 +0,0 @@
-import 'dart:sky';
-
-import 'package:sky/widgets/basic.dart';
-import 'package:sky/widgets/raised_button.dart';
-import 'package:sky/widgets/widget.dart';
-import 'package:sky/framework/net/fetch.dart';
-
-import 'lib/game_demo.dart';
-import 'lib/sprites.dart';
-
-void main() {
-  // Load images
-  new ImageMap([
-      "res/nebula.png",
-      "res/sprites.png",
-    ],
-    allImagesLoaded);
-}
-
-void allImagesLoaded(ImageMap loader) {
-  _loader = loader;
-
-  fetchBody("res/sprites.json").then((Response response) {
-    String json = response.bodyAsString();
-    _spriteSheet = new SpriteSheet(_loader["res/sprites.png"], json);
-    allResourcesLoaded();
-  });
-}
-
-void allResourcesLoaded() {
-  runApp(new GameDemoApp());
-}
-
-class GameDemoApp extends App {
-
-  Widget build() {
-    return new Stack([
-      new SpriteWidget(new GameDemoWorld(_loader, _spriteSheet)),
-//      new StackPositionedChild(
-//        new Flex([
-//          new FlexExpandingChild(
-//            new RaisedButton(child:new Text("Hello")),
-//            key: 1
-//          ),
-//          new FlexExpandingChild(
-//            new RaisedButton(child:new Text("Foo!")),
-//            key: 2
-//          )
-//        ]),
-//        right:0.0,
-//        top: 20.0
-//      )
-    ]);
-  }
-}
-
-ImageMap _loader;
-SpriteSheet _spriteSheet;