Better .nupkg integration

[alerickson]

• push .nupkgs
  (add more integration here as necessary)

Support for publishing built nupkgs

[ThomasNieto]

Is this issue to add support for Publish-PSResource to accept -Path .\module.nupkg files?

[SydneyhSmith]

This is related to this issue #1393

[Maha-I]

We have a requirement to NuGet sign .nupkg files published to PowerShell Gallery. Our processes will download this NuGet, and install it from a local PSRepository using Install-Module.

Currently the NuGet package is created internally by Publish-Module command, so we need to have an alternate workflow that supports NuGet signing.

One option is to be able to publish a NuGet package created by the official build workflow, with support to pre-validate that the package is installable using Install-Module.