lib/core/bytes: Adding a redef of has method
lib/core/bytes: Adding a redef of has method

Adding the redef of the `has` method  to take care of the negative numbers

Signed-off-by: Florian Deljarry <947961b90cb93a9343e8ca0457b9d463c3e20c1c@gmail.com>

privat/nit,privat/nit,privat/nit,privat/nit,privat/nit,privat/nit,privat/nit,privat/nit,privat/nit,privat/nit