data model (part 2 of ???)

src/mol-base/utils/bit-flags.ts

src/mol-data/model.ts

src/mol-data/model/properties/basic.ts

src/mol-data/model/properties/conformation.ts

src/mol-data/model/properties/hierarchy.ts

src/mol-data/model/properties/secondary-structure.ts

src/mol-data/model/properties/symmetry.ts

src/mol-data/model/properties/transforms.ts

src/mol-data/query.ts

src/mol-data/query/selection.ts