[WinCairo] Build WinCairo port under VS2010 
https://bugs.webkit.org/show_bug.cgi?id=112604

Reviewed by Tim Horton.

* WebKit.vcxproj/WebKit.sln: Add Debug_WinCairo and Release_WinCairo
build targets. No other changes in this patch.
* WebKit.vcxproj/FeatureDefinesCairo.props: Add parallel property
sheet for WinCairo version of build.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@146120 268f45cc-cd09-0410-ab3c-d52691b4dbfc