Add Bicep support

[Gijsreyn]

This PR adds Bicep support to deploy a new WinGet Rest Source in Azure.

[Gijsreyn]

Hi @denelon. I already created an initial draft to add Bicep support. Even thought the New-WinGetSource is a one-liner, I think users would love to see Bicep support as well. With the Graph API also supported in Bicep, we should be able to add the support for Entra ID Service Principal.

I was curious to your thoughts, that's why I already opened it as draft.

[Gijsreyn]

@denelon, I've submitted this for review since the PR has grown quite large. I've tried converting the basic ARM templates to Bicep. There were a few challenges, but that's to be expected.

I've done some initial local testing. Before diving into extensive testing (initial setup checks for linting only), I want to see if we can proceed with this. Some documentation has been added, though it might not be in the correct location.

On the other side, after working on this for a while, I realize it might not belong in this repository. Maybe we can ask the AVM team to create a pattern for all three implementation performances. Let me know your thoughts.

[denelon]

Eventually, I'd like to have this work lead into an Azure Marketplace offering. I'd want to keep that code here in this repository with some kind of "small", "medium", "large" concept to support different scale out scenarios.

[Gijsreyn]

Cool, thanks for the reply Demitrius. I'll leave it up to the team to review :)