add file to vc project.

windows/LightGBM.vcxproj

@@ -230,12 +230,14 @@
     <ClInclude Include="..\src\metric\rank_metric.hpp" />
     <ClInclude Include="..\src\metric\regression_metric.hpp" />
     <ClInclude Include="..\src\metric\multiclass_metric.hpp" />
+    <ClInclude Include="..\src\metric\xentropy_metric.hpp" />
     <ClInclude Include="..\src\network\linkers.h" />
     <ClInclude Include="..\src\network\socket_wrapper.hpp" />
     <ClInclude Include="..\src\objective\binary_objective.hpp" />
     <ClInclude Include="..\src\objective\rank_objective.hpp" />
     <ClInclude Include="..\src\objective\regression_objective.hpp" />
     <ClInclude Include="..\src\objective\multiclass_objective.hpp" />
+    <ClInclude Include="..\src\objective\xentropy_objective.hpp" />
     <ClInclude Include="..\src\treelearner\data_partition.hpp" />
     <ClInclude Include="..\src\treelearner\feature_histogram.hpp" />
     <ClInclude Include="..\src\treelearner\leaf_splits.hpp" />

windows/LightGBM.vcxproj.filters

@@ -195,6 +195,12 @@
     <ClInclude Include="..\src\boosting\rf.hpp">
       <Filter>src\boosting</Filter>
     </ClInclude>
+    <ClInclude Include="..\src\objective\xentropy_objective.hpp">
+      <Filter>src\objective</Filter>
+    </ClInclude>
+    <ClInclude Include="..\src\metric\xentropy_metric.hpp">
+      <Filter>src\metric</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="..\src\application\application.cpp">