feat: IBehaviourController.GetBehaviours(List)

Engine.Core/BehaviourController.cs

@@ -70,6 +70,18 @@ public class BehaviourController : IBehaviourController
         return behaviours ?? Enumerable.Empty<T>().ToList();
     }
 
+    public void GetBehaviours<T>(List<T> behaviors)
+    {
+        behaviors.Clear();
+        foreach (var behaviourItem in behaviours)
+        {
+            if (behaviourItem is not T _)
+                continue;
+
+            behaviours.Add(behaviourItem);
+        }
+    }
+
     public void RemoveBehaviour<T>(bool removeAll = false) where T : class, IBehaviour
     {
         for (int i = behaviours.Count; i >= 0; i--)