* Ensure PackageArchive contains the right build of Razor.Design package
* Re-order values in build\dependencies.props to ensure Razor.Design's package version is
overwritten.
* Convert additional package refs to project refs
Fixes https://github.com/aspnet/AspNetCore-Internal/issues/1708
* Update CodeCheck.ps1
Part of #4246
Changes:
* Update source code layout to follow the new conventions for this repo
* Update project files to use `<Reference>`
* Update targets to build NPM packages
* Update BuildTools to support custom 'restore' and 'test' targets
Changes:
* Fix broken tests and VS solutions caused by source code reorganization
* Add a check to validate generated code and solutions on PRs
* backport some source code reorg to src/Identity
* Fix startvs.cmd if you've already run build.ps1
* Add PR checks for tests on Linux/macOS
* Skip broken Nginx tests
* Add conditions to skip IIS tests on non-Windows platforms