add new corutine utils

CoroutineUtils.cs

@@ -16,6 +16,17 @@ namespace NEG.Utils
             }
         }
 
+        public static void ActionAfterFrames(this MonoBehaviour mono, int count, Action action)
+        {
+            mono.StartCoroutine(ActionAfterFrames(count, action));
+        }
+        
+        public static IEnumerator ActionAfterFrames(int count, Action action)
+        {
+            yield return WaitForFrames(count);
+            action?.Invoke();
+        }
+
         public static IEnumerator ActionAfterEndOfFrame(Action action)
         {
             yield return WaitForEndOfFrame;