Added a new syspref to Load history to the next user

Added a new syspref to Load history to the next user

Added a syspref LoadHistory addSearchHistoryToTheFirstLoggedUser to select if you want the system to add the history of searches performed without session when you log in as registered user.
TEST PLAN
1 - Search in the catalogue, check you are not logged
2 - Log in : your last history should appear
4 - Log out
5 - Apply the patch
6 - Repeat 1 and 2
7 - Desactivate the syspref addSearchHistoryToTheFirstLoggedUser
8 - Repeat 1 and 2 : your last history shouldn't appear

The Unit test doesn't rollback but delete the added lines : the function get_template_and_user allway sets the autocommit to 1.

https://bugs.koha-community.org/show_bug.cgi?id=8010

Tested 3 patches together, works as expected.
Signed-off-by: Marc Véron <veron@veron.ch>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Brendan A Gallagher <brendan@bywatersolutions.com>