Why:
* The ApiQueryUserInfo API returns 'anon' as true when the user
making the request is an IP user.
* This API should return 'temp' if the user making the request is
a temporary account, as described by T358683.
What:
* Return 'temp' with the value true from the ApiQueryUserInfo API
when the user making the API request is a temporary user.
* Test that the temp user flag is added when the user making the
request is a temporary user and that the flag is not added when
the user is logged-out.
Bug: T358683
Change-Id: I5f165576a12a2218d89ab3623d7df45e2c9049fa
2e3bd68bec