Work around eventual consistency in the AWS API

[rmc3]

e.g. replace the time.sleep() in Organization convergence methods with something more robust such as polling the AWS API to ensure that newly created entities are shown before proceeding

[ghost]

I looked into this. There's no waiters in the organizations SDK. Implementing our own would be a larger effort than I think is worth at this point. I'd vote this card become a stretch goal or something if the current implementation is satisfactory.

[rmc3]

Agreed.