Move example fn widgets into sky/framework/components

sky/examples/stocks-fn/stocksapp.dart

 library stocksapp;
 
 import '../../framework/fn.dart';
+import '../../framework/components/drawer.dart';
+import '../../framework/components/drawer_header.dart';
+import '../../framework/components/fixed_height_scrollable.dart';
+import '../../framework/components/floating_action_button.dart';
+import '../../framework/components/icon.dart';
+import '../../framework/components/material.dart';
+import '../../framework/components/menu_divider.dart';
+import '../../framework/components/menu_item.dart';
+import '../../framework/components/toolbar.dart';
 import '../data/stocks.dart';
-import '../fn/widgets/widgets.dart';
 import 'dart:math';
 
 part 'stockarrow.dart';
 part 'stocklist.dart';
 part 'stockrow.dart';
 
 class StocksApp extends App {
 
   DrawerAnimation _drawerAnimation = new DrawerAnimation();
 
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           key: 'Content',
           style: _style,
           children: [toolbar, new Stocklist(stocks: _sortedStocks)]
         ),
         fab,
         drawer,
       ]
     );
   }
 }