adding support for organizations service control policies
* [Resolves#2196] - endpoints for querying organizations SC policies
I have added the following mock endpoints to the Organizations service:
- create_policy
- list_policies
- describe_policy
- attach_policy
- list_policies_for_target
- list_targets_for_policy
refactered classes: FakeRoot inherits from FakeOrganizationsUnit
add root_id attribute to class FakeOrganization
dropped 'roots' attribute from class OrganizationaBackend
endpoints covers so far:
- create_organization
- describe_organization
- create_account
- describe_account
- list_accounts
all tests passing.
could use some advise from maintaners.