Add support for the dotnet-sonarscanner dotnet tool

[Cheesebaron]

Would be really nice to switch over to use the dotnet-sonarscanner tool, such that .NET Core and .NET 5.0+ projects also can be scanned using this plugin.

[HofmeisterAn]

Indeed. In the meantime you can use following approach to use the official scanner: #96 (comment).

[Cheesebaron]

Indeed. In the meantime you can use following approach to use the official scanner: #96 (comment).

Neat