Added pre-binning methods

See merge request !89

removed return value from main processing functions

See merge request !92

# Conflicts:
#   src/toolbox_scs/detectors/dssc_processing.py

fixed failing logger when loading chunk data

See merge request !90

(cherry picked from commit d749155b)

Add __init__.py files to some subpackages

See merge request !88

further testing. Fixed bugs in main binning routine, tested, start construction of formatter and analyzer class

Started generalization of binning routines, tested, further debugging, documentation and usage simplifications to be done

Extended skeleton for dssc class, restructured processing and routines modules for easy switch between joblib and multiprocessing

Added file handlers, prepared skeleton for updated dssc class, plot related routines to be integrated and tested.