Add dex module to Visual Studio project.
<ClCompile Include="..\..\..\libyara\mem.c" />
<ClCompile Include="..\..\..\libyara\modules.c" />
<ClCompile Include="..\..\..\libyara\modules\cuckoo.c" />
+ <ClCompile Include="..\..\..\libyara\modules\dex.c" />
<ClCompile Include="..\..\..\libyara\modules\dotnet.c" />
<ClCompile Include="..\..\..\libyara\modules\elf.c" />
<ClCompile Include="..\..\..\libyara\modules\hash.c" />
