midiviz

Vendored by pathtrace/tools/vendor.mjs for Experiment #045:

• three-gpu-pathtracer 0.0.28
• three-mesh-bvh 0.9.17
• @meimu/mutracer 0.3.0
• three 0.187.0
• oidn-webgpu 0.6.0
• xatlas-web 0.1.0