Map username from SAML Assertion when new user is created.

[nicolas-semaphor]

Background:

When the SAMLResponse is recieved from the IdP, the assertion contains different user attributes. These attributes should be used when creating the federated user, but as it stands right now, this does not seem to work. This may very well be related to FKIS using different namespaces for user attributes than the SAML2 Standard.

[janhalen]

This needs a more detailed description, what is the goal?

Are there any relations to #54?

Will this be a supporting feature for auto-creation of users, at first login?

[nicolas-semaphor]

@nicolas-semaphor Details moved to top

[nicolas-semaphor]

Currently experimenting, but this should be by possible utilizing this