PSResourceGet DSC resources

[ThomasNieto]

Summary of the new feature / enhancement

As a user I want PSResourceGet to have DSC resources so I can declaratively manage PS resources.

Proposed technical implementation details (optional)

No response

[kilasuit]

This is essentially a reask of #211 (when this repo was for PowerShellGet and had resources delivered) but to remove needing PowerShellGet/PackageManagement going forward

[kilasuit]

Also worth noting that we have had this asked for as part of https://github.com/dsccommunity/ComputerManagementDsc with a PR currently open to add this using the older PowerShellGet/PackageManagement modules as a class resource
There's also been talk about this being something that winget provides an access layer to in the winget-cli repo as part of the configurations that winget can apply

I agree though that PSResourceGet should author and own the resources and these can then be utilised in configurations & not require duplicated functionality in the ComputerManagementDSC repo.