Parse and generate NCS operators

data/mmcif-field-names.csv

src/apps/structure-info/model.ts

src/mol-io/reader/cif/schema/mmcif.ts

src/mol-math/geometry/symmetry-operator.ts

src/mol-math/linear-algebra/3d/mat3.ts

src/mol-math/linear-algebra/3d/vec3.ts

src/mol-model/structure/model/formats/mmcif.ts

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

src/mol-model/structure/structure/symmetry.ts