DSC should follow the parameters file schema from Azure

[Bpoe]

Summary of the new feature / enhancement

DSC uses the Azure Template schema for its configuration document. It should also follow the Azure schema for its parameters file:

{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentParameters.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "<first-parameter-name>": {
      "value": "<first-value>"
    },
    "<second-parameter-name>": {
      "value": "<second-value>"
    }
  }
}

https://learn.microsoft.com/en-us/azure/azure-resource-manager/templates/parameter-files

Proposed technical implementation details (optional)

No response

[Bpoe]

Also, please passing parameters from the PowerShell cmdlet:
https://learn.microsoft.com/en-us/azure/azure-resource-manager/templates/deploy-powershell#pass-parameter-values

When passing parameters via command line, parameters are simple kvp

[SteveL-MSFT]

The second item should be a separate issue. For the format of the file, I think we can check the $schema and use it against the ARM format otherwise expect the current format

[SteveL-MSFT]

As part of this work, add support for reference in parameters file which would leverage secret()