Add license header to all source files

Fixes #55

.editorconfig

@@ -146,6 +146,11 @@ dotnet_diagnostic.IDE0044.severity = warning
 
 # CSharp code style settings:
 [*.cs]
+
+# Require file header OR A source file contains a header that does not match the required text
+file_header_template = This file is subject to the terms and conditions defined\nin file 'LICENSE', which is part of this source code package.
+dotnet_diagnostic.IDE0073.severity = error
+
 # Newline settings
 csharp_new_line_before_open_brace = all
 csharp_new_line_before_else = true

DepotDownloader/AccountSettingsStore.cs

@@ -1,3 +1,6 @@
+// This file is subject to the terms and conditions defined
+// in file 'LICENSE', which is part of this source code package.
+
 using System;
 using System.Collections.Concurrent;
 using System.Collections.Generic;

DepotDownloader/Ansi.cs

@@ -1,3 +1,6 @@
+// This file is subject to the terms and conditions defined
+// in file 'LICENSE', which is part of this source code package.
+
 using System;
 using Spectre.Console;
 

DepotDownloader/CDNClientPool.cs

@@ -1,3 +1,6 @@
+// This file is subject to the terms and conditions defined
+// in file 'LICENSE', which is part of this source code package.
+
 using System;
 using System.Collections.Concurrent;
 using System.Collections.Generic;

DepotDownloader/ContentDownloader.cs

@@ -1,3 +1,6 @@
+// This file is subject to the terms and conditions defined
+// in file 'LICENSE', which is part of this source code package.
+
 using System;
 using System.Buffers;
 using System.Collections.Concurrent;

DepotDownloader/DepotConfigStore.cs

@@ -1,3 +1,6 @@
+// This file is subject to the terms and conditions defined
+// in file 'LICENSE', which is part of this source code package.
+
 using System;
 using System.Collections.Generic;
 using System.IO;

DepotDownloader/DownloadConfig.cs

@@ -1,4 +1,7 @@
-using System.Collections.Generic;
+// This file is subject to the terms and conditions defined
+// in file 'LICENSE', which is part of this source code package.
+
+using System.Collections.Generic;
 using System.Text.RegularExpressions;
 
 namespace DepotDownloader

DepotDownloader/HttpClientFactory.cs

@@ -1,3 +1,6 @@
+// This file is subject to the terms and conditions defined
+// in file 'LICENSE', which is part of this source code package.
+
 using System.IO;
 using System.Net.Http;
 using System.Net.Http.Headers;

DepotDownloader/HttpDiagnosticEventListener.cs

@@ -1,3 +1,6 @@
+// This file is subject to the terms and conditions defined
+// in file 'LICENSE', which is part of this source code package.
+
 using System;
 using System.Diagnostics.Tracing;
 using System.Text;

DepotDownloader/PlatformUtilities.cs

@@ -1,3 +1,6 @@
+// This file is subject to the terms and conditions defined
+// in file 'LICENSE', which is part of this source code package.
+
 using System;
 using System.Runtime.InteropServices;
 

DepotDownloader/Program.cs

@@ -1,3 +1,6 @@
+// This file is subject to the terms and conditions defined
+// in file 'LICENSE', which is part of this source code package.
+
 using System;
 using System.Collections.Generic;
 using System.ComponentModel;

DepotDownloader/ProtoManifest.cs

@@ -1,3 +1,6 @@
+// This file is subject to the terms and conditions defined
+// in file 'LICENSE', which is part of this source code package.
+
 using System;
 using System.Collections.Generic;
 using System.IO;

DepotDownloader/Steam3Session.cs

@@ -1,3 +1,6 @@
+// This file is subject to the terms and conditions defined
+// in file 'LICENSE', which is part of this source code package.
+
 using System;
 using System.Collections.Concurrent;
 using System.Collections.Generic;

DepotDownloader/Util.cs

@@ -1,3 +1,6 @@
+// This file is subject to the terms and conditions defined
+// in file 'LICENSE', which is part of this source code package.
+
 using System;
 using System.Collections.Generic;
 using System.IO;