updated all run scripts with new Workflow class, HPC_setup script is calling now the new run_HPC.py script

split experiment path and name setup, replace parser inside ExpSetup by experiment_date parameter and add therefore args handling to all run scripts

introduced module "modules" to collect all working steps (like experiment setup, pre-processing) in separate folder

some paths are still not updated and will cause errors (WIP)

restructured experiment setup, therefore deactivated some functionality in run.py and modules.py (tests fill probably fail now!)

split run.py into experiment_setup.py and modules.py (includes preprocessing, training, postprocessing)