Adding git submodule to DirectX ToolKit

.gitmodules

@@ -1,3 +1,6 @@
 [submodule "dep/gsl"]
 	path = dep/gsl
 	url = https://github.com/microsoft/gsl
+[submodule "dep/DirectXTK"]
+	path = dep/DirectXTK
+	url = https://github.com/microsoft/DirectXTK.git

src/renderer/atlas/atlas.vcxproj

@@ -7,10 +7,12 @@
     <ProjectName>RendererAtlas</ProjectName>
     <TargetName>ConRenderAtlas</TargetName>
     <ConfigurationType>StaticLibrary</ConfigurationType>
+    <IncludePath>$(SolutionDir)\dep\DirectXTK\Inc;$(IncludePath)</IncludePath>
   </PropertyGroup>
   <Import Project="$(SolutionDir)src\common.build.pre.props" />
   <Import Project="$(SolutionDir)src\common.nugetversions.props" />
   <ItemGroup>
+    <ClCompile Include="..\..\..\dep\DirectXTK\Src\WICTextureLoader.cpp" />
     <ClCompile Include="AtlasEngine.api.cpp" />
     <ClCompile Include="AtlasEngine.r.cpp" />
     <ClCompile Include="dwrite.cpp" />
@@ -19,12 +21,14 @@
       <PrecompiledHeader>Create</PrecompiledHeader>
     </ClCompile>
     <ClCompile Include="AtlasEngine.cpp" />
+    <ClCompile Include="TextureLoader.cpp" />
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="dwrite.h" />
     <ClInclude Include="DWriteTextAnalysis.h" />
     <ClInclude Include="pch.h" />
     <ClInclude Include="AtlasEngine.h" />
+    <ClInclude Include="TextureLoader.h" />
   </ItemGroup>
   <ItemGroup>
     <FxCompile Include="custom_shader_ps.hlsl">
@@ -83,4 +87,4 @@
       <AdditionalIncludeDirectories>$(OutDir)$(ProjectName)\;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
     </ClCompile>
   </ItemDefinitionGroup>
-</Project>
+</Project>

src/renderer/atlas/pch.h

@@ -25,6 +25,9 @@
 #include <dxgidebug.h>
 #include <VersionHelpers.h>
 
+#include <wrl/client.h>
+#include <wincodec.h>
+
 #include <gsl/gsl_util>
 #include <gsl/pointers>
 #include <gsl/span>