fix imgui wm hook

TestPlugin/Plugin.cs

@@ -1,4 +1,5 @@
-using NLog;
+using CringePlugins.Render;
+using NLog;
 using VRage.Plugins;
 
 namespace TestPlugin;
@@ -14,6 +15,8 @@ public class Plugin : IPlugin
     public void Init(object gameInstance)
     {
         Log.Info("Test Plugin init");
+        
+        RenderHandler.Current.RegisterComponent(new TestRenderComponent());
     }
 
     public void Update()