Strong-name sign Abstractions and Transport

[bjorkstromm]

Needed for OmniSharp/omnisharp-roslyn#2143

[333fred]

Hopefully we do have a workaround by using https://github.com/dsplaisted/strongnamer, but it would be good to have all dependencies actually strong-name signed. Should help anyone else who runs into similar problems.

[gep13]

@333fred I have used this tool https://github.com/brutaldev/StrongNameSigner on the Chocolatey code base when we have needed to sign some dependencies that aren't strong named, and this has worked really well for us.

[333fred]

@333fred I have used this tool https://github.com/brutaldev/StrongNameSigner on the Chocolatey code base when we have needed to sign some dependencies that aren't strong named, and this has worked really well for us.

I tried that one first, actually. It didn't appear to work with recent versions of msbuild.

[gep13]

Hmm, this might be some fun in my immediate future then ☹️ Chocolatey is currently targeting older versions of MSBuild for backwards compatibility, which is likely why we haven't seen problems.