title: File name having spaces it's changed to %20 in zip operation
body: <p>I have use the below code for Zip file operation. It's break in file name having spaces it's converted into %20 for file name.</p>
  
  <pre><code>string destFilename = ".\\" + Path.GetFileName(fileToAdd);
  Uri tempUri = new Uri("/"+Path.GetFileName(fileToAdd), UriKind.Relative);
              Uri uri = PackUriHelper.CreatePartUri(tempUri);
              if (zip.PartExists(uri))
                  zip.DeletePart(uri);
              PackagePart pkgPart = zip.CreatePart(uri, System.Net.Mime.MediaTypeNames.Application.Zip, CompressionOption.Normal);
              Byte[] bites = System.IO.File.ReadAllBytes(fileToAdd);
              pkgPart.GetStream().Write(bites, 0, bites.Length);
              zip.Close();
  </code></pre>