Bug 23679: add Unit Test t/db_dependent/Circulation/transferbook.t

Bug 23679: add Unit Test t/db_dependent/Circulation/transferbook.t

I've choosen to add it to db_dependent because we may add other tests
to cover transferbook() cases that will change DB

Signed-off-by: Owen Leonard <oleonard@myacpl.org>
Signed-off-by: Bin Wen <bin.wen@inlibro.com>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
(cherry picked from commit d096eeab8a7d23cf460b1ad5f10df746f3d62dda)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>