corrected version of the gwyddion.py (syntax error checked) and changing the output of the IgorIBWReader to a dictionary.

[Slautin]

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[codecov]

Codecov Report

Attention: Patch coverage is 84.61538% with 4 lines in your changes missing coverage. Please review.

Project coverage is 60.02%. Comparing base (001506b) to head (7ce41ac).
Report is 3 commits behind head on main.

Files	Patch %	Lines
...ciFiReaders/readers/microscopy/spm/afm/gwyddion.py	0.00%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #134      +/-   ##
==========================================
- Coverage   60.07%   60.02%   -0.06%     
==========================================
  Files          51       51              
  Lines        4223     4235      +12     
==========================================
+ Hits         2537     2542       +5     
- Misses       1686     1693       +7     

Flag	Coverage Δ
unittests	60.02% <84.61%> (-0.06%)	⬇️

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