Azure servicebus - add async functionality

[susanhooks]

This PR is to fix the issue #401 , in which the async functionality was not working as expected. I've rewritten this module to leverage the Azure Service Bus async functionality.

In my testing, this resolves the QueueFull message that was being received when a large number of events needed to be processed.

[Alex-Izquierdo]

Hi @susanhooks
Thank you very much for you contribution. The PR looks good but as you can see in the CI, your changes need also to update the tests.

[susanhooks]

Hi @susanhooks Thank you very much for you contribution. The PR looks good but as you can see in the CI, your changes need also to update the tests.

Thank you, I will update tests for this.

[susanhooks]

@Alex-Izquierdo - I've updated tests and got CI passing. Please let me know if you need anything else from me.

[p3ck]

Thank you for this contribution. We are in the process of moving the azure specific plugin to the upsteam azure collection.

https://github.com/ansible-collections/azure/tree/dev/extensions/eda

Would you mind re-submiting this PR to that collection? When I did the initial migration I was careful to keep all the git history so I would really like your commit to come from you.

We should be doing a release of the azure collection at the end of July which will then allow us to deprecate the module in this collection.

Thanks!

[ptoscano]

Would you mind re-submiting this PR to that collection? When I did the initial migration I was careful to keep all the git history so I would really like your commit to come from you.

Let's keep this process light on contributors (be them Red Hat folks or external) for now; I created a PR forwarding the commit as-is of this change: ansible-collections/azure#2017