Bug 35068: Split RenewCheckinChecked button into seperate renew/checkin buttons

Bug 35068: Split RenewCheckinChecked button into seperate renew/checkin buttons

To test:
1. APPLY patch, clear browser's cache
2. Have more than 1 checkout issued to a borrower.
3. Load the checkout table on circ/circulation.pl
4. Notice that there is now 'Renew selected items' and 'Checkin
   selected items' button.
5. Play around with each making sure that they work as excepted when
   checkouts are checked in either the 'Check in' or 'Renew' columns.
6. Uncheck everything in the 'Renew column', the 'Renew selected items'
   button should be disabled.
7. Uncheck everything in the 'Checkin column', the 'Checkin selected
   items' button should be disabled.
8. Try unchecking some of these to make sure the Renew/Checkin button is
   properly disabled when no related checkboxes are checked.
9. Try using the select all/none options at the top of both the 'Renew'
   and 'Checkin' columns. Make sure the 'Renew selected items' and
   'Checkin selected items' become properly disabled/enabled.
10. Make sure the 'Renew all' button still works properly.
11. Do the test plan of 5th patch "Make sure renew/checkin selections"

Signed-off-by: Owen Leonard <oleonard@myacpl.org>
Signed-off-by: Kelly <kelly@bywatersolutions.com>
Signed-off-by: Victor Grousset/tuxayo <victor@tuxayo.net>
Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>