Add: ArgumentsAsMemory for async methods

src/Lua/LuaFunctionExecutionContext.cs

@@ -24,6 +24,16 @@ public readonly record struct LuaFunctionExecutionContext
             return stack[^ArgumentCount..];
         }
     }
+    
+    public ReadOnlyMemory<LuaValue> ArgumentsAsMemory
+    {
+        get
+        {
+            var stack = State.Stack;
+            var memory = stack.GetBufferMemory();
+            return memory[(stack.Count-ArgumentCount)..stack.Count];
+        }
+    }
 
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public bool HasArgument(int index)