Fix stylecop issues

Former-commit-id: 32fab43d5caf3080106d0abdcd6e629370af58ac
Former-commit-id: 9aeaff7b7a973554d98e7b2932e1e4d5ca489176
Former-commit-id: 52800893572012a00a3331cc6cab3f8f449fd26d

.gitignore

@@ -108,6 +108,7 @@ TestResults
 *.Cache
 ClientBin
 stylecop.*
+!stylecop.json
 ~$*
 *.dbmdl
 Generated_Code #added for RIA/Silverlight projects

src/ImageProcessor/Colors/Color.cs

@@ -16,6 +16,11 @@ namespace ImageProcessor
     /// </remarks>
     public struct Color
     {
+        /// <summary>
+        /// Represents a <see cref="Color"/> that has R, G, B, and A values set to zero.
+        /// </summary>
+        public static readonly Color Empty = default(Color);
+
         /// <summary>
         /// The backing vector for SIMD support.
         /// </summary>

src/ImageProcessor/Colors/Formats/Bgra32.cs

@@ -26,7 +26,7 @@ namespace ImageProcessor
         public static readonly Bgra32 Transparent = new Bgra32(255, 255, 255, 0);
 
         /// <summary>
-        /// Represents a black <see cref="Bgra32"/> that has B, G, R, and A values set to 0, 0, 0, 0.
+        /// Represents a black <see cref="Bgra32"/> that has B, G, R, and A values set to 0, 0, 0, 255.
         /// </summary>
         public static readonly Bgra32 Black = new Bgra32(0, 0, 0, 255);
 

src/ImageProcessor/Common/Helpers/PixelOperations.cs

@@ -6,7 +6,6 @@
 namespace ImageProcessor
 {
     using System;
-    using System.Collections.Concurrent;
 
     /// <summary>
     /// Performs per-pixel operations.

src/ImageProcessor/ImageProcessor.csproj

@@ -39,6 +39,7 @@
     <DefineConstants>TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <DocumentationFile>bin\Release\ImageProcessor.XML</DocumentationFile>
   </PropertyGroup>
   <ItemGroup>
     <Compile Include="Colors\Formats\Cmyk.cs" />
@@ -237,13 +238,14 @@
     <None Include="Formats\Jpg\README.md" />
     <None Include="Formats\Png\Zlib\README.md" />
     <None Include="project.json" />
-    <AdditionalFiles Include="stylecop.json" />
   </ItemGroup>
   <ItemGroup>
     <None Include="Formats\Bmp\README.md" />
     <None Include="Formats\Png\README.md" />
   </ItemGroup>
-  <ItemGroup />
+  <ItemGroup>
+    <AdditionalFiles Include="stylecop.json" />
+  </ItemGroup>
   <Import Project="$(MSBuildExtensionsPath32)\Microsoft\Portable\$(TargetFrameworkVersion)\Microsoft.Portable.CSharp.targets" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
        Other similar extension points exist, see Microsoft.Common.targets.

src/ImageProcessor/Samplers/Resize.cs

@@ -1,13 +1,12 @@
 // <copyright file="Resize.cs" company="James South">
-// Copyright (c) James South and contributors.
-// Licensed under the Apache License, Version 2.0.
+// Copyright (c) James South and contributors
+// Licensed under the Apache License, Version 2.0. license.
 // </copyright>
 
 namespace ImageProcessor.Samplers
 {
     using System;
     using System.Collections.Generic;
-    using System.Numerics;
     using System.Threading.Tasks;
 
     /// <summary>

src/ImageProcessor/project.lock.json.REMOVED.git-id

@@ -1 +1 @@
-3f05708641eb3ed085d4689aae4a960eb067fd16
+eb00c54ee74016c2b70f81963e7e8f83cb2dd54b

src/ImageProcessor/stylecop.json

@@ -0,0 +1,13 @@
+{
+  "$schema": "https://raw.githubusercontent.com/DotNetAnalyzers/StyleCopAnalyzers/master/StyleCop.Analyzers/StyleCop.Analyzers/Settings/stylecop.schema.json",
+  "settings": {
+    "documentationRules": {
+      "companyName": "James South",
+      "copyrightText": "Copyright (c) {companyName} and contributors\nLicensed under the {licenseName} license.",
+      "variables": {
+        "licenseName": "Apache License, Version 2.0."
+      },
+      "documentPrivateFields": true
+    }
+  }
+}