Move examples to //sky/sdk/example

sky/sdk/example/game/lib/texture.dart

 part of sprites;
 
 /// A texture represents a rectangular area of an image and is typically used to draw a sprite to the screen.
 ///
 /// Normally you get a reference to a texture from a [SpriteSheet], but you can also create one from an [Image].
 class Texture {
   /// The image that this texture is a part of.
   ///
   ///     var textureImage = myTexture.image;
   final Image image;
@@ skipping 53 matching lines @@
   Texture._fromSpriteFrame(this.image, this.name, this.size, this.rotated, this.trimmed, this.frame,
                            this.spriteSourceSize, this.pivot) {
   }
 
 //  Texture textureFromRect(Rect rect, [String name = null]) {
 //    assert(rect != null);
 //    Rect frame = new Rect.fromLTRB();
 //    return new Texture._fromSpriteFrame(image, name, rect.size, false, false, );
 //  }
 }