v60.1.0-alpha.356

Change Log

1. Added Source Link Support
2. Added local dependency on Microsoft.NETFramework.ReferenceAssemblies to remove dependency on .NET Framework Targeting Pack during builds
3. Fixed XML documentation so it will be included in the NuGet package
4. Updated build with the latest features
   • Use latest SDKs for build and tests (6.0.101, 5.0.404, 3.1.416)
   • Added readme.md to NuGet package
   • Added target-framework-conditional support for dependencies.props
   • Added .gitattributes file
   • Added CLI build script for Windows, macOS, and Linux
   • Added documentation for building, testing, releasing
   • Renamed build directory to .build
   • Added PrintTargetFrameworks MSBuild target to read the supported target frameworks for a given test project
   • Added SkipGitVersioning MSBuild property to remove the Nerdbank.GitVersioning NuGet package reference when creating versions via scripts
   • Updated azure-pipelines.yml to allow overriding version info using parameters
5. Upgraded J2N package dependency to 2.0.0