Move AddTiff to extension method

src/ImageSharp/Configuration.cs

@@ -6,7 +6,6 @@ using System.Collections.Concurrent;
 using System.Collections.Generic;
 using SixLabors.ImageSharp.Formats;
 using SixLabors.ImageSharp.Formats.Bmp;
-using SixLabors.ImageSharp.Formats.Experimental.Tiff;
 using SixLabors.ImageSharp.Formats.Gif;
 using SixLabors.ImageSharp.Formats.Jpeg;
 using SixLabors.ImageSharp.Formats.Png;
@@ -174,17 +173,6 @@ namespace SixLabors.ImageSharp
             };
         }
 
-        /// <summary>
-        /// Registers the TIFF format detector, decoder and encoder.
-        /// </summary>
-        public void AddTiff()
-        {
-            this.ImageFormatsManager.AddImageFormat(TiffFormat.Instance);
-            this.ImageFormatsManager.AddImageFormatDetector(new TiffImageFormatDetector());
-            this.ImageFormatsManager.SetDecoder(TiffFormat.Instance, new TiffDecoder());
-            this.ImageFormatsManager.SetEncoder(TiffFormat.Instance, new TiffEncoder());
-        }
-
         /// <summary>
         /// Creates the default instance with the following <see cref="IConfigurationModule"/>s preregistered:
         /// <see cref="PngConfigurationModule"/>
@@ -192,7 +180,6 @@ namespace SixLabors.ImageSharp
         /// <see cref="GifConfigurationModule"/>
         /// <see cref="BmpConfigurationModule"/>.
         /// <see cref="TgaConfigurationModule"/>.
-        /// <see cref="TiffConfigurationModule"/>
         /// </summary>
         /// <returns>The default configuration of <see cref="Configuration"/>.</returns>
         internal static Configuration CreateDefaultInstance()

src/ImageSharp/Formats/Tiff/ConfigurationExtensions.cs

@@ -0,0 +1,23 @@
+// Copyright (c) Six Labors.
+// Licensed under the Apache License, Version 2.0.
+
+namespace SixLabors.ImageSharp.Formats.Experimental.Tiff
+{
+    /// <summary>
+    /// Helper methods for the Configuration.
+    /// </summary>
+    public static class ConfigurationExtensions
+    {
+        /// <summary>
+        /// Registers the tiff format detector, encoder and decoder.
+        /// </summary>
+        /// <param name="configuration">The configuration.</param>
+        public static void AddTiff(this Configuration configuration)
+        {
+            configuration.ImageFormatsManager.AddImageFormat(TiffFormat.Instance);
+            configuration.ImageFormatsManager.AddImageFormatDetector(new TiffImageFormatDetector());
+            configuration.ImageFormatsManager.SetDecoder(TiffFormat.Instance, new TiffDecoder());
+            configuration.ImageFormatsManager.SetEncoder(TiffFormat.Instance, new TiffEncoder());
+        }
+    }
+}