adding in some needed packages

Assets/Bremsengine/FPS Counter/FPSCounterUI.cs

@@ -0,0 +1,45 @@
+using UnityEngine;
+using TMPro;
+using System.Collections.Generic;
+using Core.Extensions;
+namespace Bremsengine
+{
+    public class FPSCounterUI : MonoBehaviour
+    {
+        public TMP_Text fpsText; // Assign a UI Text element in the inspector
+        private Queue<float> frameTimes = new Queue<float>();
+        private int bufferSize = 30;
+
+        private void RefreshText()
+        {
+            float averageDeltaTime = 0.0f;
+            foreach (float frameTime in frameTimes)
+            {
+                averageDeltaTime += frameTime;
+            }
+            if (frameTimes.Count == 0)
+            {
+                fpsText.text = "FPS : 0";
+                return;
+            }
+            averageDeltaTime /= frameTimes.Count;
+
+            float fps = 1.0f / averageDeltaTime.Max(0.0001f);
+            fpsText.text = "FPS : "+Mathf.Ceil(fps).ToString("F0");
+        }
+        private void Start()
+        {
+            InvokeRepeating(nameof(RefreshText), 0.5f, 0.5f);
+        }
+        void Update()
+        {
+            float deltaTime = Time.unscaledDeltaTime;
+            frameTimes.Enqueue(deltaTime);
+
+            if (frameTimes.Count > bufferSize)
+            {
+                frameTimes.Dequeue();
+            }
+        }
+    }
+}