Suggestion: Animation smoothing for mobs

[bwilliance]

I don't know if this has already been requested or not, but I though this idea would be nice. Some mobs use certain animations, such as pillagers and piglins loading crossbows, and mobs raising their arms when they start to attack. Currently, the animation smoothing setting only applies to players. It would be cool if it could also be applied to mobs.

[tr7zw]

Might be a good idea, now that I fixed some glaring math issues in the smoothing logic.