Warden update .NET 4.6.1 & NETCoreApp

Thanks to the contribution from Mattias, Warden and all of it’s packages have been updated to the latest version of the framework which is .NET 4.6.1. and accordingly the cross-platform packages have been upgraded to use the NETCoreApp including DotNet 5.6 & DNX Core 5.0.

On top of that, both the MS SQL integration and watcher support .NET Core framework due to the latest version of the Dapper that is compatible with this platform.

Warden packages are versioned as 1.2 and are available on NuGet.