new directory model_modules to collect all model methods and classes

CI/run_pytest.sh

run.py

src/data_handling/data_distributor.py

src/datastore.py

src/helpers.py

src/model_modules/__init__.py

src/model_modules/flatten.py

src/model_modules/inception_model.py

src/run_modules/__init__.py

src/run_modules/experiment_setup.py

src/run_modules/model_setup.py

src/run_modules/modules.py

src/run_modules/post_processing.py

src/run_modules/pre_processing.py

src/run_modules/run_environment.py

src/run_modules/training.py

test/test_model_modules/test_inception_model.py

test/test_modules/test_experiment_setup.py

test/test_modules/test_model_setup.py

test/test_modules/test_post_processing.py