Nuget update to Math.NET Spatial v0.7.0

[t0bde]

Hi guys, first of all I would like to say that I love your library! Would it be possible to make the Math.NET Spatial v0.7.0 version available on Nuget?

[jkalias]

I would certainly love to, but even though I am a co-maintainer of this repo, I don't have publish rights to Nuget. Perhaps @JohanLarsson could try instead? @cdrnet is relatively quiet, also in the MathNet.Numerics repo, so I don't know how to interpret this.

I don't know if this helps, maybe you can try https://github.com/jkalias/mathnet-spatial/releases?