dotnet references for .fsx & .csx scripts

[ctaggart]

It would be much easier to write dotnet script functions if it was simpler to reference external assemblies. The dotnet core has all the functionality to download and run the assemblies. Can ya'll help bake this into scripts? I'd like to be able to do:

#package "Microsoft.Azure.WebJobs@2.0.0-*"
#package "NewtonSoft.Json"

I added this to fsharp/fslang-suggestions#542 also. It applies to C# as well, but not sure where to request it.

[lindydonna]

This seems like an interesting feature, but we don't plan to invent something that is Functions-specific. The right direction for this is to use precompiled assemblies, so that you can get the full benefit of existing toolchains.