refactor: Move ML model class from lstm_model.py to ml_model.py

Author: Dmitriy-NK

experiment/main.py

@@ -23,7 +23,7 @@
 from experiment.plot import save_plot
 from experiment.src.data_loader import read_detected_data, read_metadata, join_label, get_y_labels
 from experiment.src.features import prepare_data
-from external.fork.CredSweeper.experiment.src.lstm_model import MlModel
+from experiment.src.ml_model import MlModel
 from experiment.src.model_config_preprocess import model_config_preprocess
 from experiment.src.prepare_data import prepare_train_data, data_checksum