Update for 15.8 preview

DirectXTK_XboxOneXDK_2017.vcxproj

@@ -667,6 +667,7 @@
       <AdditionalIncludeDirectories>$(ProjectDir)Inc;$(ProjectDir)Src;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <ProgramDataBaseFileName>$(IntDir)$(TargetName).pdb</ProgramDataBaseFileName>
       <AdditionalOptions>/Zc:twoPhase- %(AdditionalOptions)</AdditionalOptions>
+      <SupportJustMyCode>false</SupportJustMyCode>
     </ClCompile>
   </ItemDefinitionGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />