chore: import upstream snapshot with attribution

Core/Utils/ObjectPooling/ArrayPool.cs

@@ -0,0 +1,48 @@
+using System;
+
+namespace T3.Core.Utils.ObjectPooling;
+
+public sealed class ArrayPool<T>
+{
+    private readonly ObjectPoolBase<T[]> _pool;
+    private readonly int _arrayLength;
+
+    public ArrayPool(bool concurrent, int arrayLength)
+    {
+        _arrayLength = arrayLength;
+        if (concurrent)
+        {
+            _pool = new ConcurrentObjectPool<T[]>(CreateFunc);
+        }
+        else
+        {
+            _pool = new ObjectPool<T[]>(CreateFunc);
+        }
+    }
+
+    public T[] Get() => _pool.Get();
+
+    public void Return(T[] obj, bool clear)
+    {
+        var length = _arrayLength;
+        if (obj.Length != length)
+        {
+            throw new ArgumentException("Invalid array length - this array did not come from this pool", nameof(obj));
+        }
+        
+        if (clear)
+        {
+            for (var i = 0; i < length; i++)
+            {
+                obj[i] = default;
+            }
+        }
+
+        _pool.Return(obj);
+    }
+
+    private T[] CreateFunc()
+    {
+        return new T[_arrayLength];
+    }
+}