Enhancements

• Added the following controls to the All Controls benchmark: (#733)
  • api_gateway_rest_api_public_endpoint_with_authorizer
  • dlm_ebs_snapshot_lifecycle_policy_enabled
  • docdb_cluster_instance_encryption_at_rest_enabled
  • ebs_volume_snapshot_exists
  • elasticache_cluster_no_public_subnet
  • iam_role_no_administrator_access_policy_attached
  • iam_user_access_key_unused_45
  • iam_user_console_access_unused_45
  • neptune_db_cluster_no_public_subnet