Fixed evaluate scripts to work with nan data.

src/robofish/evaluate/app.py

src/robofish/evaluate/evaluate.py

src/robofish/io/file.py

src/robofish/io/utils.py

tests/resources/nan_test.hdf5

tests/robofish/evaluate/test_app_evaluate.py

tests/robofish/io/test_app_io.py

tests/robofish/io/test_file.py

tests/robofish/io/test_io.py