Resources supported in Cognito
- Cognito user pool - https://www.terraform.io/docs/providers/aws/r/cognito_user_pool.html
- Cognito user pool client - https://www.terraform.io/docs/providers/aws/r/cognito_user_pool_client.html
- Cognito user pool domain - https://www.terraform.io/docs/providers/aws/r/cognito_user_pool_domain.html