rename to atoms/chem_comp and bonds/chem_comp

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

src/mol-io/writer/mol2/encoder.ts

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

src/mol-model-formats/structure/property/atoms/chem_comp.ts

src/mol-model-formats/structure/property/bonds/chem_comp.ts

...mol-model/structure/structure/unit/bonds/intra-compute.ts

src/servers/model/properties/providers/wwpdb.ts

src/servers/model/server/query.ts