Ensure a good error message if tests are run from non-compatible .net frameworks

[OsirisTerje]

See #1039

The acceptable frameworks are listed here: https://docs.nunit.org/articles/vs-test-adapter/Supported-Frameworks.html

The exception mentioned in #1039 is a side-effect exception, normally we should see an engine exception. These needs to be connected so that we can say that the framework we run under is not supported.
We don't have time to check the framework, if it is not directly available to us, so we must depend on the exceptions that are throwed.