This patch introduces the Koha::Object-based classes for handling
patron attribute types.
It also adds branch limitation handling to the
Koha::Patron::Attribute::Type class.
It is built on top of the new Koha::Object::Library::Limit class
that extends Koha::Object so it handles library limits.
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com> Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org> Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>