Bug 18073: Holds to pull table enhancement

Bug 18073: Holds to pull table enhancement

Test plan:
0) apply the patch
1) enable on shelf hold in administration -> circulation and fines rules
2) create some holds on avalaible items
3) go to administration -> columns settings and confirm there is new holds-to-pull table in circulation section
4) go to circulation -> holds to pull page and confirm that
    4a) that the page does work as before
    4b) there is ne "Column visibility" button in datatable toolbar
    4c) the column configuration does work as expected
    4d) there is new column "First patron" with link to patron which is
        first in holds queue for given record
    4e) sorting works ax expected
    4f) filters (in teh bottom of table) work as expected

Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Works nicely!

https://bugs.koha-community.org/show_bug.cgi?id=18079

Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>