Added the Y:Cb:Cr coefficients needed to convert the thumbnails. Added the declaration of dimagev_ycbcr_to_ppm().
Added the Y:Cb:Cr coefficients needed to convert the thumbnails.
Added the declaration of dimagev_ycbcr_to_ppm().


git-svn-id: 40dd595c6684d839db675001a64203a1457e7319@1233 67ed7778-7388-44ab-90cf-0a291f65f57c

jbreeden/libgphoto2,thusoy/libgphoto2,msmeissn/libgphoto2,gphoto/libgphoto2,jbreeden/libgphoto2,gphoto/libgphoto2,msmeissn/libgphoto2,gphoto/libgphoto2,thusoy/libgphoto2,msmeissn/libgphoto2,gphoto/libgphoto2,jbreeden/libgphoto2,gphoto/libgphoto2,msmeissn/libgphoto2,jbreeden/libgphoto2,jbreeden/libgphoto2,thusoy/libgphoto2,gphoto/libgphoto2,thusoy/libgphoto2,thusoy/libgphoto2,msmeissn/libgphoto2