Work on mmCIF exporter

data/mmcif-field-names.csv

src/apps/cif2bcif/converter.ts

src/apps/domain-annotation-server/mapping.ts

src/apps/domain-annotation-server/utils.ts

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

src/mol-io/writer/cif/encoder.ts

src/mol-io/writer/cif/encoder/binary.ts

src/mol-io/writer/cif/encoder/text.ts

src/mol-io/writer/cif/encoder/util.ts

src/mol-model/structure/export/categories/atom_site.ts

...ol-model/structure/export/categories/modified-residues.ts

...-model/structure/export/categories/secondary-structure.ts

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

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

...-model/structure/model/formats/mmcif/bonds/struct_conn.ts

...mol-model/structure/model/properties/custom/descriptor.ts

src/perf-tests/cif-encoder.ts

src/servers/model/server/query.ts

src/servers/volume/server/query/encode.ts