PowerShell DSC Resources for WinGet

Description of the new feature / enhancement

I would like to be able to use PowerShell DSC to install and configure WinGet.

Several issues have made mention to challenges associated with getting WinGet installed (or in a valid state) on different Windows SKUs or environments:

• https://github.com/microsoft/winget-cli/issues/2040
• https://github.com/microsoft/winget-cli/issues/2081
• https://github.com/microsoft/winget-cli/issues/2222

@cdhunt also made a PR with a PowerShell script to help with this challenge:

• https://github.com/microsoft/winget-cli/pull/2474
• https://github.com/microsoft/winget-cli/issues/2230
• https://github.com/microsoft/winget-cli/issues/2434

A couple of mentions have also suggested PowerShell DSC:

• https://github.com/microsoft/winget-cli/issues/698#issuecomment-1070044758
• https://github.com/microsoft/winget-cli/issues/291#issuecomment-632922571

Proposed technical implementation details

As we are nearing the first release of WinGet PowerShell modules and cmdlets, this would be aligned with that same effort.

• #221

Start by reading the PowerShell modules and cmdlets effort referenced in #221, then review the related issues and the PowerShell script PR linked in this issue. Done would mean defining and implementing DSC resources that can install and configure WinGet across the Windows SKUs and environments described.