feat: Add initial AuthzQuerier implementation
- Adds package database/dbauthz that adds a database.Store implementation where each method goes through AuthZ checks
- Implements all database.Store methods on AuthzQuerier
- Updates and fixes unit tests where required
- Updates coderd initialization to use AuthzQuerier if codersdk.ExperimentAuthzQuerier is enabled
* chore: Optimize rego policy evaluation allocations
Manually convert to ast.Value instead of using generic
json.Marshal conversion.
* Add a unit test that prevents regressions of rego input
The optimized input is always compared to the normal json
marshal parser.
