Packaging scripts need update for 0.8.23 targeting change

[condron]

the targeting and project update here
https://github.com/ReactiveDomain/reactive-domain/tree/condron/identity-storage
does not work with the debug package builder here
https://github.com/ReactiveDomain/package-and-deployment/blob/master/tools/CreateDebugNuget.ps1
as some of the projects have been removed (e.g. private ledger)
and the new targets are net48 and core31

As a temp fix the package.bat file here
https://github.com/ReactiveDomain/reactive-domain/blob/condron/identity-storage/package.bat
has been updated to correctly use dotnet pack to create the new core packages