add server status & capabilities

Pilz.Net/Api/IApiServer.cs

@@ -16,24 +16,18 @@ public interface IApiServer
     event DataManagerEventHandler? OnResetDataManager;
 
     IDataManager Manager { get; }
-
     string ApiUrl { get; }
-
     bool EnableAuth { get; set; }
 
     IApiMessageSerializer Serializer { get; }
-
     ILogger Log { get; set; }
-
     void Start();
-
-    void Stop();
-
+    void Stop() => Stop(true);
     void RegisterHandler<T>(T instance) where T : class;
-
     void RegisterHandler(Delegate handler);
-
     void RegisterHandler(Delegate handler, bool throwOnError);
-
     void RegisterHandler(Delegate handler, ApiMessageHandlerAttribute attribute, bool throwOnError);
+    IEnumerable<string> GetEndpoints();
+    void Stop(bool graceful);
+    void Restart(bool graceful);
 }