public void ZipFiles1()
        {
            var file1 = new FileToZip { Name = "test1.txt", Contents = Encoding.UTF8.GetBytes("This is test1.") };
            var file2 = new FileToZip { Name = "test2.txt", Contents = Encoding.UTF8.GetBytes("This is test2.") };

            var zippedFileContents = new Zipper().ZipFiles(new List<FileToZip> { file1, file2 });
        }