animatedbuffer: rename d1/d2 to d0/d1
animatedbuffer: rename d1/d2 to d0/d1

This is more consistent with kf0/kf1.

gopro/gopro-lib-node.gl,gopro/gopro-lib-node.gl,gopro/gopro-lib-node.gl,gopro/gopro-lib-node.gl