Version expansion for NuGet

[oliverchang]

NuGet is almost semver, but not exactly: https://docs.microsoft.com/en-us/nuget/concepts/package-versioning#where-nugetversion-diverges-from-semantic-versioning

[oliverchang]

NuGet's implementation: https://github.com/NuGet/NuGet.Client/blob/dev/src/NuGet.Core/NuGet.Versioning/VersionComparer.cs