Implement urn:oasis:names:tc:SAML:2.0:nameid-format:transient
NameQualifier and SPNameQualifier are optional and are not included.
https://fedorahosted.org/ipsilon/ticket/27
Signed-off-by: Rob Crittenden <rcritten@redhat.com>
Reviewed-by: Simo Sorce <simo@redhat.com>