Add project files.

AssetStudio/BigArrayPool.cs

@@ -0,0 +1,10 @@
+using System.Buffers;
+
+namespace AssetStudio
+{
+    public static class BigArrayPool<T>
+    {
+        private static readonly ArrayPool<T> s_shared = ArrayPool<T>.Create(64 * 1024 * 1024, 3);
+        public static ArrayPool<T> Shared => s_shared;
+    }
+}