Implement RenderImage and Image for Sky

sky/examples/fn2/container.dart

Index: sky/examples/fn2/container.dart
diff --git a/sky/examples/fn2/container.dart b/sky/examples/fn2/container.dart
index a3509c455f387a4433fd2a3661e844a0eea241d7..ce2a5c620f887df252e630a6d703b4a2ac88be77 100644
--- a/sky/examples/fn2/container.dart
+++ b/sky/examples/fn2/container.dart
@@ -5,6 +5,17 @@
 import 'dart:sky' as sky;
 import 'package:sky/framework/fn2.dart';
 import 'package:sky/framework/rendering/box.dart';
+import '../lib/solid_color_box.dart';
+
+class Rectangle extends RenderNodeWrapper {
+  RenderSolidColor root;
+  RenderSolidColor createNode() =>
+      new RenderSolidColor(color, desiredSize: new sky.Size(40.0, 130.0));
+
+  final int color;
+
+  Rectangle(this.color, { Object key }) : super(key: key);
+}
 
 class ContainerApp extends App {
   UINode build() {