Before we merge this, let's manually run MSI tests including upgrading to make sure it works as expected.

@bobuva The only thing that changes in this PR is the nuget packaging. I'll test the MSI after making the versioning changes we talked about, for basing the MSI verison on something hard coded.

@colin-higgins Sorry, I wasn't clear if this PR would address the MSI versioning, but if you were going to tackle that, you could either hard-code the version directly in Product.wxs, or hard-code the InstallerVersion property that is set in Datadog.Trace.ClrProfiler.WindowsInstaller.wixproj, that way the command line argument is no longer used.

Maybe it would just be easier to set the values in Datadog.Trace.ClrProfiler.WindowsInstaller.wixproj because that is where you can set the OutputName property to generate the filename with the prerelease tag as part of the filename. Just be sure to delete the InstallerVersion and OutputName command line arguments in the packages.yml file

And yet another suggestion, maybe just remove the Condition="'$(InstallerVersion)'==''" and Condition="'$(OutputName)'==''" that way we never override the version from command line arguments, we always rely on the definition in the wixproj file

Just need to update the release docs... :D