Bug 25765: Replace LoginBranchname and LoginBranchcode with use of Branches template...

Bug 25765: Replace LoginBranchname and LoginBranchcode with use of Branches template plugin

The template plugin Branches contains a method GetLoggedInBranchcode that returns current branch code.
This patch adds GetLoggedInBranchname to get current branch name.
It is used to replace vars LoginBranchname and LoginBranchcode sent to all templates in C4/Auth.pm.

In labels and patrons cards modules, I choose to remove a unseless display of
current branch in a hint.

In acqui/acqui-home.tt, I choose to remove a useless display of current
branch and also because table of founds contains a filter on library.

Test plan:
Check pages source code to see branch code or name is correct.
list of the pages:
/cgi-bin/koha/acqui/acqui-home.pl
/cgi-bin/koha/catalogue/detail.pl?biblionumber=XXX
/cgi-bin/koha/circ/branchoverdues.pl
/cgi-bin/koha/circ/set-library.pl
/cgi-bin/koha/circ/offline.pl
/cgi-bin/koha/labels/label-edit-batch.pl?op=new
/cgi-bin/koha/labels/label-manage.pl
/cgi-bin/koha/patroncards/edit-batch.pl
/cgi-bin/koha/patroncards/manage.pl
OPAC:
/cgi-bin/koha/opac-detail.pl?biblionumber=XXX

Signed-off-by: Victor Grousset/tuxayo <victor@tuxayo.net>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>

Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>