[reference_model] tosa.fb name changes

This patch adjusts reference model for attribute name changes in
tosa.fb schema, and for obsoleted slice/tile/reshape attributes
also updated examples due to the breaking tosa flatbuffers changes

Signed-off-by: Tai Ly <tai.ly@arm.com>
Change-Id: I105eb99a4c35f289c5078aed0a7f9cbb6dfe9123