bcif stringarray decoder update, data model property access

src/mol-base/collections/column.ts

src/mol-base/collections/integer/_spec/segmentation.spec.ts

src/mol-base/collections/integer/_spec/sorted-array.spec.ts

src/mol-base/collections/integer/impl/interval.ts

src/mol-base/collections/integer/impl/segmentation.ts

src/mol-base/collections/integer/impl/sorted-array.ts

src/mol-base/collections/table.ts

src/mol-data/model/builders/mmcif.ts

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

src/mol-data/structure/property.ts

src/mol-data/structure/unit.ts

src/mol-io/reader/cif/binary/decoder.ts

src/perf-tests/structure.ts