Update OBB.d.ts (#51742)
Update OBB.d.ts (#51742)

OBB( center : Vector3, halfSize : Vector3, rotation : Matrix3 )
center — The center of the OBB. (optional)
halfSize — Positive halfwidth extents of the OBB along each axis. (optional)
rotation — The rotation of the OBB. (optional)
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