NewAppealRepository returns repository struct.

NewPolicyRepository returns repository struct.

NewProviderRepository returns repository struct.

NewResourceRepository returns *Repository.

AppealRepository talks to the store to read or insert data.

TODO: merge into github.com/goto/salt/audit.

PolicyRepository talks to the store to read or insert data.

ProviderRepository talks to the store to read or insert data.

ResourceRepository talks to the store/database to read/insert data.