message: fix pdb parser: need cif-category not table
diff: @@ -162,8 +162,8 @@ export async function pdbToMmCif(pdb: PdbFile): Promise<CifFrame> {
  }
  const categories = {
  - entity: entityBuilder.getEntityTable(),
  - chem_comp: componentBuilder.getChemCompTable(),
  + entity: CifCategory.ofTable('entity', entityBuilder.getEntityTable()),
  + chem_comp: CifCategory.ofTable('chem_comp', componentBuilder.getChemCompTable()),
  atom_site: CifCategory.ofFields('atom_site', getAtomSite(atomSite)),
  atom_site_anisotrop: CifCategory.ofFields('atom_site_anisotrop', getAnisotropic(anisotropic))
  } as any;
  