Support for System.IO.Packaging.Package

[erik-hooper]

Is it possible to add support for these kind of files? There is a special signing process for them using PackageDigitalSignatureManager which signs the files in the package, and generates a signed manifest.

https://learn.microsoft.com/en-us/dotnet/api/system.io.packaging.zippackage?view=net-8.0
https://learn.microsoft.com/en-us/dotnet/api/system.io.packaging.packagedigitalsignaturemanager?view=windowsdesktop-8.0