Support for xml attribute

[Dedeas]

Hi,
would it be possible to add support for xml attribute?
Thanks

[XRay3D]

I also need attributes, I decided to implement it myself. Maybe I'll make a pull request.

[XRay3D]

Hi, would it be possible to add support for xml attribute? Thanks

As a result, I invented my own "bicycle" https://github.com/XRay3D/TopoR/tree/master/XmlSerializer