The YamlObject::get() function template is implemented for 16-bit and 32-bit integers. Add an 8-bit specialization that will be used in the rkisp1 IPA module, and extend the unit tests accordingly. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Paul Elder <paul.elder@ideasboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>