Bug 22051: Make Koha::Object->store translate incorrect value exceptions

Bug 22051: Make Koha::Object->store translate incorrect value exceptions

This patch adds a new condition to Koha::Object->store so it catches
incorrect value-related DBIC exceptions.

This DBIC exceptions get now translated into
Koha::Exceptions::Object::BadValue exceptions with relevant parameters
passed.

To test:
- Apply the exception and unit tests patches
- Run:
  $ kshell
 k$ prove t/db_dependent/Koha/Object.t
=> FAIL: Tests fail because this exception handling code is not
implemented
- Apply this patch
- Run:
 k$ prove t/db_dependent/Koha/Object.t
=> SUCCESS: Tests pass!
- Sign off :-D

Signed-off-by: Owen Leonard <oleonard@myacpl.org>
Signed-off-by: Charles Farmer <charles.farmer@inLibro.com>
Signed-off-by: Josef Moravec <josef.moravec@gmail.com>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>