message: gltfpack: Fix .obj triangulation
  The code accidentally only wrote the first triangle in the polygon.
diff: @@ -351,9 +351,11 @@ void parseMeshesObj(fastObjMesh* obj, cgltf_data* data, std::vector<Mesh>& meshe
  for (unsigned int vi = 2; vi < obj->groups[gi].vertices[fi]; ++vi)
  {
  - mesh.indices[io + 0] = unsigned(vo);
  - mesh.indices[io + 1] = unsigned(vo + vi - 1);
  - mesh.indices[io + 2] = unsigned(vo + vi);
  + size_t to = io + (vi - 2) * 3;
  +
  + mesh.indices[to + 0] = unsigned(vo);
  + mesh.indices[to + 1] = unsigned(vo + vi - 1);
  + mesh.indices[to + 2] = unsigned(vo + vi);
  }
  vertex_offset[mi] += obj->groups[gi].vertices[fi];
  