v2.7.8

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. 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
4. Upgraded J2N package dependency to 2.0.0