improve SshHost usability

csharp/Lib/Utils/SshHost.cs

@@ -26,4 +26,8 @@ public class SshHost
     }
 
     public Task<Boolean> Ping() => HostName.Ping();
+
+    public static implicit operator SshHost(String hostname) => new SshHost(hostname);
+
+    public override String ToString() => Command.ToString();
 }