parser is working + try to get mesh/shape

src/mol-io/reader/ply/parse_data/data-model.ts

src/mol-io/reader/ply/parse_data/field.ts

src/mol-io/reader/ply/parse_data/ply_parser.ts

src/mol-model/shape/formarts/ply/plyData_to_shape.ts

src/mol-plugin/state/actions/basic.ts

src/tests/browser/index.html

src/tests/browser/render-shape.ts