[FEATURE] Add-PnpDocumentSet requires -Folder parameter

[SPDEVGUY]

Is your feature request related to a problem? Please describe. The file https://github.com/pnp/powershell/blob/dev/src/Commands/DocumentSets/AddDocumentSet.cs

Uses the root folder of the document library and does not accept a folder as a parameter.

Describe the solution you'd like Add a folder parameter like the add-pnplistitem command.

Describe alternatives you've considered Probably need to manually use the SP client api awkwardly.

Additional context I'm trying to make document sets within folders in a document library.