Bug 22435: Update unit tests

Bug 22435: Update unit tests

This patch updates the unit tests to reflect the changes we have made to
offset types.  We do two things:

1) Clean up calls to 'apply' to drop passing offset_type
2) Update test code to look for APPLY and CREATE instead of specific
   offset types.

Signed-off-by: Victor Grousset/tuxayo <victor@tuxayo.net>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>