Create a NuGet package from the .NET library

[pvandervelde]

Pull request #262 added the ability to use the script analyzer code from a .NET library. It would be awesome if a release of the PSScriptAnalyzer also published a NuGet package with the .NET libraries so that we can use it from our .NET Solutions.

[khaffner]

If I may add to this, I'd like it to support .NET Core as well.
At the moment I'm using PSScriptAnalyzer in ASP.NET Core, via a pwsh7 process. It works, but feels janky and slow. A proper library would be nice 😊

[rjmholt]

We're actually already working toward this -- added a label to indicate that

[SydneyhSmith]

Tracking this request also around this scenario: #1581
https://www.powershellgallery.com/packages/ConvertToSARIF/1.0.0