Introduced orcasong_contrib package. Moved data_tools scripts from OrcaNet to OrcaSong.

orcasong/make_nn_images.py

orcasong_contrib/__init__.py

orcasong_contrib/data_tools/__init__.py

orcasong_contrib/data_tools/concatenate/__init__.py

orcasong_contrib/data_tools/concatenate/concatenate_h5.py

orcasong_contrib/data_tools/make_data_split/__init__.py

...plit/configs/config_bg_classifier_xyz-c_tight-0_100b.toml

...plit/configs/config_bg_classifier_xyz-t_tight-0_100b.toml

...ng_contrib/data_tools/make_data_split/example_config.toml

...ong_contrib/data_tools/make_data_split/make_data_split.py

orcasong_contrib/data_tools/shuffle/__init__.py

orcasong_contrib/data_tools/shuffle/shuffle_h5.py

...5strings_av23min20mhorizontal_18OMs_alt9mvertical_v1.detx

orcasong_contrib/utilities/__init__.py

...ong_contrib/utilities/count_number_of_events_in_folder.py

orcasong_contrib/utilities/dom_binning.py

orcasong_contrib/utilities/get_func_for_flat_track_shower.py

orcasong_contrib/utilities/timecut_test/__init__.py

...ong_contrib/utilities/timecut_test/plots/elec-CC/.gitkeep

...ong_contrib/utilities/timecut_test/plots/muon-CC/.gitkeep