Release v2.1.0 - .NET 8

What's Changed

• Do some clean-up in the unit/benchmark tests by @tgharold in #29
• Rework Github action for v2 by @tgharold in #30
• Create the artifacts/release folder in action by @tgharold in #31
• Copy license/readme into project folder for build by @tgharold in #32
• Remove dotnet pack working directory argument by @tgharold in #33
• Update csproj values, add IsPackable=false if needed by @tgharold in #34
• Tweak attaching '**/*.nupkg' files to Github release by @tgharold in #35
• Attach (s)nupkg from the artifacts/ directory by @tgharold in #36
• Use a dot instead of a dash for the artifact name by @tgharold in #37
• Remove copy commands, update PackageReadmeFile by @tgharold in #38
• Create README file for 'dotnet pack' by @tgharold in #39
• Target .NET 6 in test projects by @tgharold in #40
• Add more complicated Enumerable w/ Enumerable tests by @tgharold in #41
• Update build to use .NET 8 by @tgharold in #44
• Add a .claudeignore file to the root by @tgharold in #45
• Update the example project to target .NET 8 by @tgharold in #46
• Add CLAUDE.md file to project by @tgharold in #47
• upgrade to actions/upload-artifact@v7 by @tgharold in #48
• Shorten up how we build/test locally in CLAUDE.md by @tgharold in #49

Full Changelog: v2.0.0...v2.1.0