Add IK Smoothing to Avatars to reduce Body Jiggle when Lighthouse Trackers are used.

[CMC-Git-Report]

Is your feature request related to a problem?

When applying FBT client side, from my perspective my entire body giggles when moving even thought my trackers are not sliding on my body (EoZ traps, tightly worn). I'm using Tundra trackers. When I apply the VRデバイスの揺れ防止ツール「OVR-SmoothTracking」Steam VR plugin (https://booth.pm/ja/items/4018006), most of the excess jiggle is removed at the cost of slight latency and a discombobulation between my head+neck (which is not smoothed in OVR ST, unlike my trackers) and the rest of my body. When observing user RedAzuki on Slimes using the same Vulparii 1.2 avatar as me, his body does not jiggle, I presume due to smoothing applied in the Slime VR client. He doesn't mention a jiggle problem from his perspective.

Describe your preferred solution

A setting native to Basis, similar to the smoothing in VRChat.

Or, an overall improvement to the IK system, which I presume is in progress. Right now, lifting a leg while T stanced will influence the chest to bend to the side, even with a chest tracker and back/shoulder tracker applied. It is like avatars are rubberized at the moment.

Describe any considered alternatives

N/A

Additional Context

No response