v0.10.0

Bring skeletal animation and voxel clips closer together: bake a rig into a
clip, and ease its motion.

Added

• Bake a rig's animation into a clip. "Bake to clip" (Animate ▸ clips
  panel, with a frame-count field) samples a skeletal clip's poses and
  rasterizes every bone attachment — static mesh or animated clip layer — into a
  voxel-flipbook clip, opened as a new clip document to preview / tweak / export
  or drop back onto a bone. The bake matches the viewport exactly (same posing +
  voxel placement) and bounds the result to a fixed box (capped at 256³).
• Keyframe easing. A skeletal clip can interpolate with an easing curve —
  Linear, In, Out, or In-out — chosen per clip in the Animate panel, for smooth
  motion instead of the engine's robotic linear blend. The curve is saved with
  the rig (.rkc / .demiurg), shows live in the preview, and is carried into a
  bake.

Fixed

• A bone whose primary attachment is an animated clip but that also carries a
  static-mesh extra no longer draws that extra twice in the posed-rig preview.