Bug 30394: Make datatables.js aware of x-koha-request-id

Bug 30394: Make datatables.js aware of x-koha-request-id

This patch makes the wrapper handle the data.draw parameter (from
DataTables) translating it into the x-koha-request-id header for making
the Koha request, and then translates the received header into data.draw
for proper use in DataTables.

Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>