Provision static parts of infrastructure lazily

[Maciej Kwidzinski]

Some CloudFormation stack resources provision slowly. For example, AWS::IAM::InstanceProfile provisions for at least 2 minutes due to propagation. In most cases, instance profiles and roles can be reused by different invocations.

Let's add the ability to provide another CloudFormation template, which would be provisioned only once. It would also be updated whenever the template changes. We can use the stack name or tags to deduplicate them.