Expand recoil window when fast Z motion is detected.
When poking a surface rapidly, users are much more likely to over-penetrate to move their hands spatially further past the virtual PokeInteractable.SurfacePatch than they might normally do, simply because they're moving fast. Under such circumstances, both motion tracking and user proprioception tend to contain large spatial errors, and typical interaction windows may consequently be inadequate in such scenarios. This leads to the concept of "velocity
expansion," which pads or "expands" the error margins for certain interaction parameters (notably recoil assist) based on the velocity of the user's interaction.
