Fixed lock-on rotation.

New `lock-on` feature.

Improved camera position and rotation.

Plugin ID from `com.2155x.fairbair.ai_povx` to `com.2155x.fairbair.hs2_povx`.
Camera is now centered to the eyes instead from the neck.
Camera now uses the head bone's rotation as reference instead of the neck when `Rotate Head to Camera` is disabled.
Default `Z Offset` to `0.15`.
Replaced `Stabilize Camera` with `Camera Smoothness`.
`Hide Head` no longer sets the target's head bone size to zero, instead sets active to `false`.

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