efl_canvas_object_animation: support duration 0

efl_canvas_object_animation: support duration 0

The duration of animation means how long the animation is executed.
Therefore, if duration is 0, then the final state of animation should be
applied to the target object immediately.

In this case, if final_state_keep is true, then the final state of
animation is preserved. Otherwise, the final state of animation is not
preserved.

ref T8436, T8513

Reviewed-by: Marcel Hollerbach <mail@marcel-hollerbach.de>
Differential Revision: https://phab.enlightenment.org/D10812