public void WriteTest()
{
var pkg = new Package();
pkg.Meta.Add("version", "1.0.0.1");
pkg.Meta.Add("Name", "HelloWorldPackage");
pkg.AddRessource("Ionic.Zip.xml", File.ReadAllBytes(@".\Ionic.Zip.xml"))
.AddXaml("hello.xaml", "<Button>click Me!!!</Button>");
PackageWriter.Save("test.xpkg", pkg);
}