Package alterator-auth: Information

- Fix nss role behaviour (use domain names and place in nsswitch.conf)

- Edit existing Kerberos configuration instead of use winbind to
  retrieve Kerberos config (ALT #32342, #32937)
- Set winbind enum users and groups to `no` to prevent lags in large
  networks
- Check task-auth-ad package installed instead of winbind service to
  get complete list of requirements
- Map domain groups to local Unix groups
- Add gvfs stuff to task-auth-ad for shares mount
- Set time sync from dc for client
- Adapt LightDM for too many domain users: remove user list and language
  chooser (such as Windows login screen)

- Wait 10 seconds for winbind to create krb5.conf file (ALT #32759)