Bug 23382: Fix logic in C4::Circulation::CanBookBeIssued

Bug 23382: Fix logic in C4::Circulation::CanBookBeIssued

It looks like over progressive rebases of bug 20912 a clause was lost
within CanBookBeIssued such that a fatal error may be triggered if an
item with no corresponding itemtype was passed into the routine.

Additionally the we were passing a Koha::Library object to CalcDateDue
rather than a branchcode which resulted in a different duedate being
used in 'CanBookBeIssued' when compared to 'AddIssue'.

Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>