ENH: Allow to replace YAML objects instead of strings .

integrationtests/basic_example/test_basic.py

integrationtests/test_use_case_simple_presentation.py

src/caoscrawler/macros/macro_yaml_object.py

src/doc/getting_started/helloworld.md

unittests/example_cfood.yml

unittests/h5_cfood.yml

unittests/scifolder_cfood.yml

unittests/test_converters.py

unittests/test_entity_comparison.py

unittests/test_h5_converter.py

unittests/test_identifiable.py

unittests/test_identifiable_adapters.py

unittests/test_json.py

unittests/test_macros.py

unittests/test_parent_cfood.yml

unittests/test_scanner.py

unittests/test_schema.py

unittests/test_table_converter.py

unittests/test_transformers.py

unittests/test_variable_substitutions.py