Bug 35653: Log import_patrons.pl info to action logs

Bug 35653: Log import_patrons.pl info to action logs

To test:
1. APPLY PATCH
2. Create a CSV file with a few lines that contain at least firstname, surname, cardnumber
3. Turn on "CronjobLog".
4. Run the import patron script. I did this: perl /kohadevbox/koha/misc/import_patrons.pl --file 'test1.csv' --matchpoint cardnumber -c
5. Check the action logs for cronjobs.
6. You should see info. about the import patron script.

Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Emily Lamancusa <emily.lamancusa@montgomerycountymd.gov>
Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>