feat: added behaviour collector for active behaviours only

Engine.Core/ActiveBehaviourCollectorSorted.cs

@@ -0,0 +1,19 @@
+using System;
+
+using Syntriax.Engine.Core.Abstract;
+
+namespace Syntriax.Engine.Core;
+
+public class ActiveBehaviourCollectorSorted<T> : ActiveBehaviourCollector<T> where T : class, IBehaviour
+{
+    public Comparison<T>? SortBy { get; set; } = null;
+
+    protected override void OnBehaviourAdd(IBehaviour behaviour)
+    {
+        if (SortBy is not null)
+            activeBehaviours.Sort(SortBy);
+    }
+
+    public ActiveBehaviourCollectorSorted() { }
+    public ActiveBehaviourCollectorSorted(IGameManager gameManager) : base(gameManager) { }
+}