Fixed another missing tag in 6f42ed5

Author: brianferguson

C++/PluginDataHandling/PluginDataHandling.vcxproj

@@ -56,6 +56,7 @@
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
     <PlatformToolset>v143</PlatformToolset>
+  </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
   </ImportGroup>