Bug 21133: [18.05.x] Fix use statements order

Bug 21133: [18.05.x] Fix use statements order

Basically the idea is:
1. Undefined subroutine &C4::Items::ModZebra called at /home/vagrant/kohaclone/C4/Items.pm line 302.

=> Then use C4::Items before C4::Biblio

2. Undefined subroutine &C4::Circulation::GetItem called at /home/vagrant/kohaclone/C4/Circulation.pm line 1290

=> Then use C4::Circulation before C4::Items

And sometimes these 2 rules do not work...

Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>