Shut down the application by pressing ctrl + c

[manne]

Fixes #11

[manne]

The test execution is blocked due to the changes 😣

[joro550]

I now see what you mean by the tests are now blocked, because the await is waiting for the ctrl c input from the tests, haha!

Basically we need to tell the server that we don't have to wait for it to complete, we can do this by overriding StartServer method in TestRealServerImpl:

protected override Task StartServer(ISettings settings, CancellationToken cancellationToken)
{
    base.StartServer(settings, cancellationToken);
    return Task.CompletedTask;
}

Would appreciate if you made this change before the merge :)

[manne]

@joro550 done