- Added missing files to Visual C projects

diff --git a/visualc/VS2010/PolarSSL.vcxproj b/visualc/VS2010/PolarSSL.vcxproj
index 26bac09..c40b6ba 100644
--- a/visualc/VS2010/PolarSSL.vcxproj
+++ b/visualc/VS2010/PolarSSL.vcxproj
@@ -155,6 +155,7 @@
     <ClInclude Include="..\..\include\polarssl\cipher.h" />

     <ClInclude Include="..\..\include\polarssl\cipher_wrap.h" />

     <ClInclude Include="..\..\include\polarssl\config.h" />

+    <ClInclude Include="..\..\include\polarssl\ctr_drbg.h" />

     <ClInclude Include="..\..\include\polarssl\debug.h" />

     <ClInclude Include="..\..\include\polarssl\des.h" />

     <ClInclude Include="..\..\include\polarssl\dhm.h" />

@@ -224,4 +225,4 @@
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />

   <ImportGroup Label="ExtensionTargets">

   </ImportGroup>

-</Project>
\ No newline at end of file
+</Project>