Implement `parameters` support

[SteveL-MSFT]

Summary of the new feature / enhancement

Parameters will eventually become the way to have templates

Proposed technical implementation details (optional)

No response

[Bpoe]

Resources for parameters:
https://learn.microsoft.com/en-us/azure/azure-resource-manager/templates/syntax#parameters
https://learn.microsoft.com/en-us/azure/azure-resource-manager/templates/parameters

[mgreenegit]

Scoped to the data types supported by both YAML and JSON.