Draft: Resolve "py-bkg-rm"

Closes #6

todos

• () remove zinger
• add distortion correction with nicola
  • dark removal (sum all darks and subtract it from the data)
  • [absolute images computation] normalisation methods ==> keep the 'margin' option
• get cli command from file (config parser?)
• create a cli command to encapsulate file location assumptions and generate the complete cli command

lower priority

• launch profile on the full script
• test nprocs and chunksize !!if relevant!!

to be defined

• moving window rules
• manual correlation to find rotation axis interface