feat: update reader with lev0 format

src/cigas_ptrms/cli/__init__.py

src/cigas_ptrms/cli/cli.py

src/cigas_ptrms/readers/ames.py

tests/ames/test_ames.py

tests/conftest.py

tests/data/conf/ptrms.toml

tests/data/lev0/ref_lev0.nas