add transform class, some code tweaks

ExampleApp/Src/Sink.cs

@@ -14,6 +14,7 @@ namespace Example
 
         void OnUpdate(float ts)
         {
+            /*
             Mat4 transform = GetTransform();
             Vec3 translation = transform.Translation;
 
@@ -21,6 +22,7 @@ namespace Example
 
             transform.Translation = translation;
             SetTransform(transform);
+        */
         }
 
     }