Added CUDA library to Visual Studio project

Theano.pyproj

@@ -220,5 +220,12 @@
     <Folder Include="theano\tensor\nnet\" />
     <Folder Include="theano\tensor\signal\" />
   </ItemGroup>
+  <ItemGroup>
+    <Content Include="theano\sandbox\cuda\conv.cu" />
+    <Content Include="theano\sandbox\cuda\conv_full_kernel.cu" />
+    <Content Include="theano\sandbox\cuda\conv_kernel.cu" />
+    <Content Include="theano\sandbox\cuda\cuda_ndarray.cu" />
+    <Content Include="theano\sandbox\cuda\cuda_ndarray.cuh" />
+  </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.Common.targets" />
 </Project>
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