Let the PU-stub return a user with multiple firstnames

[JerkerPihl]

Suggest that a user in the PU-Stub has multiple firstnames with a //calling name//...
So that can be checked when using raw

[albinsunnanbo]

You're welcome to create a pull request changing one or a few of the existing testpersons.
Preferable those at the bottom of the list.
I.e. one person with two or three names without "tilltalsnamn" and one with.
Possibly one with a double "tilltalsnamn", like /Hans Gunnar/