title: .net standard console implement healthcheck
body: <p>Is it possible to use similar healthcheck for .net standard classic like .net core web app?</p>
  
  <p>Something like</p>
  
  <pre><code>app.UseHealthChecks("/healthz", new HealthCheckOptions()
              {
                  xx
              });
  </code></pre>
  
  <p>I wan to know if console app is running and web socket client is working correctly</p>