Fix/nla
Created by: KFilippopolitis
Changelog:
1.Merged get_datasets_locations and get_datasets_labels in gather_all_dataset_infos. 2. Renamed get_updated_data_model_with_dataset_enumerations to update_data_models_with_dataset_enumerations, and now the funtion properly updates the data_models 3. Reverted changes of a bad merge