MAINT(tests): removed unused imports and sorted them with isort

src/caoscrawler/converters/rocrate.py

unittests/test_cfood_metadata.py

unittests/test_converters.py

unittests/test_crawler.py

unittests/test_entity_comparison.py

unittests/test_h5_converter.py

unittests/test_identifiable.py

unittests/test_identifiable_adapters.py

unittests/test_issues.py

unittests/test_json.py

unittests/test_macros.py

unittests/test_rocrate_converter.py

unittests/test_scalars_cfood.py

unittests/test_scanner.py

unittests/test_schema.py

unittests/test_spss_converter.py

unittests/test_sync_graph.py

unittests/test_sync_node.py

unittests/test_table_converter.py

unittests/test_transformers.py