Optional application of orientation for TIFF

Make the image orientation only optionally applied for TIFF images
to match the new image handler flags.
The default however remains to apply transformation, as opposed
to JPEGs.

The patch also adds the capability to write metadata orientation.

Change-Id: Ie24664516138641342ab6d7559d591f38b9f1e8a
Reviewed-by: Gunnar Sletta <gunnar@sletta.org>