Adjust ProjectCracker NuGet for VS/NuGet

[rneatherway]

The Target name cannot include '.', and the .targets file must match the
name of the NuGet package.

[rneatherway]

@cloudRoutine is it possible for you to try installing the test packages at https://ci.appveyor.com/project/rneatherway/fsharp-compiler-service/build/artifacts ?

[cloudRoutine]

How do I go about doing this? I tried downloading the packages into a directory and adding the directory as a local nuget source inside of VS but when I try to install it says it can't resolve all of the dependencies on my machine and fails.

I tried doing it with paket adding the directory as a local source, but it kept pulling the release version off of nuget instead.

Another option is to put a prerelease/beta version on nuget; that'd be much simpler to work with.

[rneatherway]

@Dysme OK with me publishing a prerelease version from this branch?

[rneatherway]

I found that you can do it locally this way: https://stackoverflow.com/questions/10240029/how-to-install-a-nuget-package-nupkg-file-locally

Anyway, it works so I'll release.