Adds empty classes for rotation

Former-commit-id: ae1370a66e44c69a8d0617838e5f3c0be88ebe5f
Former-commit-id: 8dc8301d648ae349d7923fbb3c2a28ae3785cc56

src/ImageProcessor/ImageFactory.cs

@@ -895,6 +895,23 @@ namespace ImageProcessor
             return this;
         }
 
+        /// <summary>
+        /// Rotates the image inside its area; keeps the area straight.
+        /// </summary>
+        /// <param name="degrees">The angle at which to rotate the image in degrees</param>
+        /// The current instance of the <see cref="T:ImageProcessor.ImageFactory"/> class.
+        /// </returns>
+        public ImageFactory RotateInside(float degrees)
+        {
+            if (this.ShouldProcess)
+            {
+                RotateInside rotate = new RotateInside { DynamicParameter = degrees };
+                this.CurrentImageFormat.ApplyProcessor(rotate.ProcessImage, this);
+            }
+
+            return this;
+        }
+
         /// <summary>
         /// Adds rounded corners to the current image.
         /// </summary>

src/ImageProcessor/ImageProcessor.csproj

@@ -233,6 +233,7 @@
     <Compile Include="Processors\Overlay.cs" />
     <Compile Include="Processors\Pixelate.cs" />
     <Compile Include="Processors\ReplaceColor.cs" />
+    <Compile Include="Processors\RotateInside.cs" />
     <Compile Include="Processors\RoundedCorners.cs" />
     <Compile Include="Processors\Saturation.cs" />
     <Compile Include="Processors\Flip.cs" />

src/ImageProcessor/Processors/RotateInside.cs

@@ -0,0 +1,46 @@
+// --------------------------------------------------------------------------------------------------------------------
+// <copyright file="Rotate.cs" company="James South">
+//   Copyright (c) James South.
+//   Licensed under the Apache License, Version 2.0.
+// </copyright>
+// <summary>
+//   Encapsulates methods to rotate an image.
+// </summary>
+// --------------------------------------------------------------------------------------------------------------------
+
+namespace ImageProcessor.Processors
+{
+    using System;
+    using System.Collections.Generic;
+    using System.Drawing;
+
+    /// <summary>
+    /// Encapsulates the methods to rotate the inside of an image
+    /// </summary>
+    public class RotateInside : IGraphicsProcessor
+    {
+        /// <summary>
+        /// Gets or sets the DynamicParameter.
+        /// </summary>
+        public dynamic DynamicParameter { get; set; }
+
+        /// <summary>
+        /// Gets or sets any additional settings required by the processor.
+        /// </summary>
+        public Dictionary<string, string> Settings { get; set; }
+
+        /// <summary>
+        /// Processes the image.
+        /// </summary>
+        /// <param name="factory">The current instance of the <see cref="T:ImageProcessor.ImageFactory" /> class containing
+        /// the image to process.</param>
+        /// <returns>
+        /// The processed image from the current instance of the <see cref="T:ImageProcessor.ImageFactory" /> class.
+        /// </returns>
+        public Image ProcessImage(ImageFactory factory)
+        {
+            // TODO: Implement this method
+            throw new NotImplementedException();
+        }
+    }
+}