Switch to outputting alg URIs instead of enums, and add c14n 1.1.
Switch to outputting alg URIs instead of enums, and add c14n 1.1.

git-svn-id: 35e0c45cba356f0e2c1fbea81384ac7531a87101@957208 13f79535-47bb-0310-9956-ffa450edef68

apache/santuario-cpp,apache/santuario-cpp,apache/santuario-cpp