Remove combined interface and split implementations. Signed-off-by: Derek McGowan <derek@mcgstyle.net>
Signed-off-by: Akihiro Suda <suda.akihiro@lab.ntt.co.jp>
Add differ options and package with interface. Update optional values on diff interface to use options. Signed-off-by: Derek McGowan <derek@mcgstyle.net>