* WIP
* Amend tests
* Do not load aggregated stats for packs
* Add option to host lite
* Fix remaining TODOs
* Fix osquery_utils tests
* Fix SQL
* Fix SQL (bis)
* Restore AuthenticateHost to load once
* Code improvements and re-add deferred host save
* More fixes to the PR
* Wrap users table update on tx
* Add caching to ListPacksForHost and ListScheduledQueriesInPack
* Remove SaveHostSoftware (replaced by UpdateHostSoftware)
* Add unit tests for new functionality
* Add changes file
* Fix scheduled queries test
- Add policy.rego file defining authorization policies.
- Add Go integrations to evaluate Rego policies (via OPA).
- Add middleware to ensure requests without authorization check are rejected (guard against programmer error).
- Add authorization checks to most service endpoints.