added missing angle headers
added angle headers for winrt
added prebuilt winrt angle libs
added winrt zlib
added prebuilt winrt libpng libs
added winrt libpng includes
added prebuild tiff libs for winrt
added prebuild freetype libs for winrt
added include files for winrt
added include files for winrt
added tiff include files
updated winrt and wp8 property sheets. Added winrt project
use getInstance()
added CC_PLATFORM_WINRT
updated property sheets
added CC_PLATFORM_WINRT
added CC_PLATFORM_WINRT and WP8
first pass of winrt version
use getInstance()
updated Angle include paths