Updated documentation and adapted test suites

See merge request !93

(cherry picked from commit 4ae0f38e)

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

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)

Added DSSC related geometry methods and image manipulation routines. quick code structuring. not tested

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