Move example fn widgets into sky/framework/components

sky/examples/fn/widgets/toolbar.dart

Index: sky/examples/fn/widgets/toolbar.dart
diff --git a/sky/examples/fn/widgets/toolbar.dart b/sky/examples/fn/widgets/toolbar.dart
deleted file mode 100644
index c840a4935854417b69e953f0d4129ebf0510c366..0000000000000000000000000000000000000000
--- a/sky/examples/fn/widgets/toolbar.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-part of widgets;
-
-class Toolbar extends Component {
-
-  List<Node> children;
-
-  static final Style _style = new Style('''
-    display: flex;
-    align-items: center;
-    height: 56px;
-    z-index: 1;
-    background-color: ${Purple[500]};
-    color: white;
-    box-shadow: ${Shadow[2]};'''
-  );
-
-  Toolbar({String key, this.children}) : super(key: key);
-
-  Node build() {
-    return new Container(
-      style: _style,
-      children: children
-    );
-  }
-}