Renamed 'simulation_code' key in parameters dictionary to 'simulation_name'
Renamed 'sim_param' into 'sim_parameters' for consistency throughout dose.py
Separated initialization of World from Entities, making Entities exclusively made of simulation_functions (thus the renaming)
Removed updating of custom functions inside the parameters dictionary as currently no use
Updated text writing on a reult.txt file
Renamed 'sim_param' to 'sim_parameters' for consistency throughout dose.py
Edited SIM_01.py parameters for the preparation of 01_basic_functions_one_cell_deployment.py