DOMAIN: Add sss_domain_info_{get,set}_output_fqnames()
Let's avoid setting a domain's property directly from cr_domain code.
In order to do so, let's introduce a setter, which may help us in the
future whenever we decide to make sss_domain_info an opaque structure.
For completeness, a getter has also been introduced and used in the
usertools code.
Related:
https://pagure.io/SSSD/sssd/issue/3403
Signed-off-by: Fabiano FidĂȘncio <fidencio@redhat.com>
Reviewed-by: Jakub Hrozek <jhrozek@redhat.com>