The trust SQL backend uses the extras column to store the
redeletegated_trust_id and redelegation_count info. It's
better to make them first class citizens and give them
their own columns.
This change does not add redelegation_trust_id to the trust schema
because this value is set by the token context, not by the user. We also
remove it from the api-ref example to avoid confusion about this.
Co-Authored-By: David Stanek <dstanek@dstanek.com>
Co-Authored-By: Alexander Makarov <amakarov@mirantis.com>
Change-Id: If496152e40d2213a03faad5645667220fddfcf62
2b9d409f0d