Store TIFF orientation flag correctly.
Store TIFF orientation flag correctly.

scott-wilson/oiio,cwilling/oiio,sambler/oiio,lgritz/oiio,micler/oiio,YangYangTL/oiio,mcanthony/oiio,OpenImageIO/oiio,cwilling/oiio,lgritz/oiio,scott-wilson/oiio,bdeluca/oiio,OpenImageIO/oiio,mcanthony/oiio,OpenImageIO/oiio,OpenImageIO/oiio,micler/oiio,YangYangTL/oiio,bdeluca/oiio,scott-wilson/oiio,cwilling/oiio,micler/oiio,lgritz/oiio,mcanthony/oiio,micler/oiio,bdeluca/oiio,bdeluca/oiio,YangYangTL/oiio,scott-wilson/oiio,sambler/oiio,lgritz/oiio,cwilling/oiio,sambler/oiio,YangYangTL/oiio,sambler/oiio,mcanthony/oiio