Use "proper" namespace since it's public

BinaryObjectScanner/IProgress.cs

@@ -3,7 +3,7 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
-namespace BinaryObjectScanner
+namespace System
 {
     /// <summary>Defines a provider for progress updates.</summary>
     /// <typeparam name="T">The type of progress update value.</typeparam>

ProtectionScan/Progress.cs

@@ -6,7 +6,6 @@
 using System;
 using System.Threading;
 using System.Diagnostics;
-using BinaryObjectScanner;
 
 namespace ProtectionScan
 {