message: Bump npm package to 0.18.1
diff: {
  "name": "meshoptimizer",
  - "version": "0.18.0",
  + "version": "0.18.1",
  "description": "Mesh optimizaiton library that makes meshes smaller and faster to render",
  "author": "Arseny Kapoulkine",
  "license": "MIT",
  