Bug 36325: Add option to koha-run-backups/koha-dump, to exclude logs

Bug 36325: Add option to koha-run-backups/koha-dump, to exclude logs

Written patch to add flag to both koha-dump and koha-run-backups.

Test plan:
1. do a sudo koha-dump and sudo koha-run-backups and check the contents of the .tar.gz backup in /var/spool/koha/instance/ and verify logs are in there
2. apply this patch
3. this time do sudo koha-dump --exclude-logs and sudo koha-run-backups --exclude-logs and check the contents of the .tar.gz backup in /var/spool/koha/instance and verify nothing from /var/log/koha is in there.

Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>