* React to Razor.Design package removal
* Remove references to packages (Razor.Design, Razor.Extensions) solely used to bring in compiler \ targets
* Target netcoreapp3.0 in samples and tests to allow Sdk to infer values
- should resolve issues with occasional strange MSBuild caching issues in this repo
- modeled after aspnet/Scaffolding#905
- follows aspnet/BuildTools#729 recommendation to check in global.config file
- see also Microsoft/msbuild#2914
- use newer KoreBuild
- `.\build.cmd -update /t:noop`
- Move the Mvc.Performance project from test/ to benchmarks/.
- Remove the Version attribute on PackageReference.
- Add a reference to two PackageLineup's.
- Add snippet to README explaining the additional requirement to run build.cmd /t:restore.
- Add a target to check that packages have been pinned.
Nate McMaster
Pranav K
Doug Bunting
Ryan Brandenburg
Nate McMaster