Removes the nuproj project so that no extension need be installed to VS in order to fully build the solution within VS 2017.
Removes the tools folder that would download a particular version of nuget.exe, since we can now just use msbuild /t:restore.
Simplifies the csproj project files by using the .NET SDK. Listing source files is no longer necessary.
Consolidate .ruleset and stylecop.json files so that a consistent style is enforced for the whole repo. Only one file header change needed to be fixed once stylecop was applied everywhere.
The nupkg that is built is now factored slightly differently. It's an implementation detail of a change, but it makes room for a future change that will allow gitlink to work within dotnet build.
msbuild /t:restore
.dotnet build
.