This adds new defaults roles in servers extended attributes
and host_status policies as SYSTEM_ADMIN but passing
project_id of server as these policies are scoped with
system and project.
Also add tests to simulates the future where we drop the deprecation
fall back in the policy by overriding the rules with a version where
there are no deprecated rule options. Operators can do the same by
adding overrides in their policy files that match the default but
stop the rule deprecation fallback from happening.
Partial implement blueprint policy-defaults-refresh
Change-Id: I55a47d447f5f5b2d18754027f69e05e729d40338
Ghanshyam Mann
76d3457bd9