LP#1851434 - Allow COPY_NOT_AVAILABLE.override during renewal

LP#1851434 - Allow COPY_NOT_AVAILABLE.override during renewal

Also addresses LP#1827901 - Allow PATRON_EXCEEDS_LONGOVERDUE_COUNT
override during checkout and renew.

Test Plan:
1. Check out an item to a patron.
2. Mark item lost by patron to change status to lost.
3. In web client, log in as user with COPY_NOT_AVAILABLE.override
4. Try to renew item for patron, see that it isn't allowed.

After fix:
1. Try to renew item for patron, see that the override is now allowed.

Also try checkouts and renews for patrons that have the PATRON_EXCEEDS_LONGOVERDUE_COUNT block.

Signed-off-by: Josh Stompro <stompro@stompro.org>
Signed-off-by: Michele Morgan <mmorgan@noblenet.org>