[VS Addin] Set the 'NonCoreWin' property to 'true'

visual_studio/NativeClientVSAddIn/InstallerResources/NaCl64/Microsoft.Cpp.NaCl64.props

Index: visual_studio/NativeClientVSAddIn/InstallerResources/NaCl64/Microsoft.Cpp.NaCl64.props
diff --git a/visual_studio/NativeClientVSAddIn/InstallerResources/NaCl64/Microsoft.Cpp.NaCl64.props b/visual_studio/NativeClientVSAddIn/InstallerResources/NaCl64/Microsoft.Cpp.NaCl64.props
index f3556e0a9f65f9604fab43e4f703276ecd18f56a..dc557b47464b7f92d3cff6688d9bea6e6706bc88 100644
--- a/visual_studio/NativeClientVSAddIn/InstallerResources/NaCl64/Microsoft.Cpp.NaCl64.props
+++ b/visual_studio/NativeClientVSAddIn/InstallerResources/NaCl64/Microsoft.Cpp.NaCl64.props
@@ -3,6 +3,10 @@
   <Import Condition="'$(ToolchainName)' == 'newlib' AND (exists('$(VCTargetsPath)\NaCl\PlatformToolsets\win_x86_newlib\Microsoft.Cpp.NaCl.win_x86_newlib.props'))" Project="$(VCTargetsPath)\NaCl\PlatformToolsets\win_x86_newlib\Microsoft.Cpp.NaCl.win_x86_newlib.props"/>
   <Import Condition="'$(ToolchainName)' == 'glibc' AND (exists('$(VCTargetsPath)\NaCl\PlatformToolsets\win_x86_glibc\Microsoft.Cpp.NaCl.win_x86_glibc.props'))" Project="$(VCTargetsPath)\NaCl\PlatformToolsets\win_x86_glibc\Microsoft.Cpp.NaCl.win_x86_glibc.props"/>
 
+  <PropertyGroup>
+    <NonCoreWin>true</NonCoreWin>
+  </PropertyGroup>
+
   <Import Condition="Exists('$(VCTargetsPath)\Microsoft.Cpp.Platform.props')" Project="$(VCTargetsPath)\Microsoft.Cpp.Platform.props"/>
 
   <PropertyGroup>