v5.0.0

What's Changed

• Change target frameworks to .NET 6.0 and .NET 7.0 by @portyanikhin
• Thread safety is implemented by @portyanikhin
• All CoolProp files have been moved to the SharpProp namespace by @portyanikhin
• Documentation update by @portyanikhin
• Refactoring by @portyanikhin
• Bump Newtonsoft.Json from 13.0.1 to 13.0.2 by @dependabot in #112

Full Changelog: v4.4.1...v5.0.0