Add specific default values for:
- scientific: to distinguish engineering notation
- fraction: to have quarter format understandable

Change-Id: I73b74713a4bc502e9967b8d2c9983cfc6244912e
Reviewed-on: https://gerrit.libreoffice.org/26391Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Eike Rathke <erack@redhat.com>
Tested-by: Eike Rathke <erack@redhat.com>