Added xmlsec

[bgaifullin]

Great job, thanks.
I want to build python binding for xmlsec for both python2.x and python3.x

Could you please also add xmlsec and openssl binaries too ?

xmlsec source code: https://github.com/lsh123/xmlsec/tree/master/win32
openssl source code: https://github.com/winlibs/openssl

And also publish both binaries: which are built with vs2008 and vs2015

[mhils]

I'm happy to accept PRs, but I don't have a concrete use case for this myself.

[bgaifullin]

Ok, I will prepare PR.
Thanks.