Bug 28456: Add WHERE option to membership_expiry cronjob

Bug 28456: Add WHERE option to membership_expiry cronjob

Some libraries have a large amount of accounts and want to be able to limit how many email reminders they send.
Adding a where statement will allow for flexibility

To test:
1 - Set some borrowers to expire soon
2 - Set MembershipExpiryDaysNotice to 10
3 - perl misc/cronjobs/membership_expiry.pl -c -v -n --before 100 --after 100
4 - Note the patrons that yo uadjusted show up
5 - Limit by various patron fields, e.g.
    perl misc/cronjobs/membership_expiry.pl -c -v -n --before 100 --after 100 --where="lastseen IS NULL"
    perl misc/cronjobs/membership_expiry.pl -c -v -n --before 100 --after 100 --where="lastseen IS NOT NULL"
    perl misc/cronjobs/membership_expiry.pl -c -v -n --before 100 --after 100 --where="surname LIKE '%a%'"
    perl misc/cronjobs/membership_expiry.pl -c -v -n --before 100 --after 100 --where="surname NOT LIKE '%a%'"
6 - Confirm expected results
7 - perl misc/cronjobs/membership_expiry.pl
8 - Confirm the help message makes sense

Signed-off-by: Azucena Aguayo <azucena.aguayo@gmail.com>
Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
[EDIT] Replace two inclue by include.

Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>