message: tweaked naming
diff: import { mmCIF_Schema } from '../../../mol-io/reader/cif/schema/mmcif';
  import { Spacegroup, SpacegroupCell, SymmetryOperator } from '../../../mol-math/geometry';
  import { Tensor, Vec3, Mat3 } from '../../../mol-math/linear-algebra';
  -import { Symmetry as _ModelSymmetry } from '../../../mol-model/structure/model/properties/symmetry';
  +import { Symmetry } from '../../../mol-model/structure/model/properties/symmetry';
  import { createAssemblies } from './assembly';
  import { CustomPropertyDescriptor } from '../../../mol-model/structure';
  import { FormatPropertyProvider } from '../common/property';
  @@ -21,7 +21,7 @@ namespace ModelSymmetry {
  name: 'model_symmetry',
  };
  - export const Provider = FormatPropertyProvider.create<_ModelSymmetry>(Descriptor)
  + export const Provider = FormatPropertyProvider.create<Symmetry>(Descriptor)
  type Data = {
  symmetry: Table<mmCIF_Schema['symmetry']>
  @@ -33,7 +33,7 @@ namespace ModelSymmetry {
  pdbx_struct_oper_list: Table<mmCIF_Schema['pdbx_struct_oper_list']>
  }
  - export function fromData(data: Data): _ModelSymmetry {
  + export function fromData(data: Data): Symmetry {
  const assemblies = createAssemblies(data.pdbx_struct_assembly, data.pdbx_struct_assembly_gen, data.pdbx_struct_oper_list);
  const spacegroup = getSpacegroup(data.symmetry, data.cell);
  const isNonStandardCrytalFrame = checkNonStandardCrystalFrame(data.atom_sites, spacegroup);
  