Ability to revert interpolation direction halfway through in the LatentKeyframeInterpolationNode

[peteromallet]

In short, if revert_direction_at_midpoint is True, it makes the initial interpolation sequence half as long, and then duplicates and reverses it so it also descends or ascends back the other direction. This is very useful for me in my stuff and may be useful for others but feel free to ignore.