Added CLI option --traceback

[forman]

Closes #57

Checklist (strike out non-applicable):

• Changes documented in CHANGES.md
• Related issue exists and is referred to in the PR description and CHANGES.md
• Added docstrings and API docs for any new/modified user-facing classes and functions
• Changes/features documented in docs/*
• Unit-tests adapted/added for changes/features
• Test coverage remains or increases (target 100%)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (3a46dd0) 99.83% compared to head (292d7cb) 99.83%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #64   +/-   ##
=======================================
  Coverage   99.83%   99.83%           
=======================================
  Files          25       25           
  Lines        1211     1216    +5     
=======================================
+ Hits         1209     1214    +5     
  Misses          2        2           

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