Add availability zones Bicep parameter

[sebassem]

Pull Request

Issue

Issue #103 and #102

Description

Adding a new private function to determine the availability zones for the selected regions and edit the parameters files of the relevant networking modules to include them by default.

License

By submitting this pull request, I confirm that my contribution is made under the terms of the projects associated license.

[oZakari]

Thanks so much @sabassem for your work with this!

Hi @jaredfholgate, is it okay with you at this point if we merge this and create a release or are you still running tests for your work?

[jaredfholgate]

@oZakari and @sebassem Although the code is all ready to go, I have not had chance to update the customer facing docs in the Bicep and Terraform Accelerator repos. I intend to do that tomorrow. I'd ideally like to wait for that before cutting the release if you can wait another day or two?

[oZakari]

@jaredfholgate, for sure, this is just something we want to try to get out by the end of this sprint so no need to rush to get it done in the next couple of days or anything.