message: Fixed filter issue in the project view (moves SurfaceFactory.h to the Things/Structures filter).
diff: <ClInclude Include="..\..\src\States\MainMenuState.h">
  <Filter>Header Files\States</Filter>
  </ClInclude>
  - <ClInclude Include="..\..\src\Things\Structures\SurfaceFactory.h">
  - <Filter>Header Files</Filter>
  - </ClInclude>
  <ClInclude Include="..\..\src\Things\Structures\SolarPanelArray.h">
  <Filter>Header Files\Things\Structures</Filter>
  </ClInclude>
  <ClInclude Include="..\..\src\FontManager.h">
  <Filter>Header Files</Filter>
  </ClInclude>
  + <ClInclude Include="..\..\src\Things\Structures\SurfaceFactory.h">
  + <Filter>Header Files\Things\Structures</Filter>
  + </ClInclude>
  </ItemGroup>
  <ItemGroup>
  <ResourceCompile Include="ophd.rc">
  