Add option to crop region

[CellKai]

Adds option to only import a specified region (=crop).

Also fixes a spelling mistake.

[ehrenfeu]

#126

[ehrenfeu]

⚠️ Tests need to be checked / updated. ⚠️

[codecov]

Codecov Report

❌ Patch coverage is 50.00000% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 25%. Comparing base (1a0f954) to head (7825f1e).
⚠️ Report is 12 commits behind head on devel.

Files with missing lines	Patch %	Lines
src/imcflibs/imagej/bioformats.py	0%	3 Missing ⚠️

Additional details and impacted files

@@         Coverage Diff          @@
##           devel   #108   +/-   ##
====================================
  Coverage     25%    25%           
====================================
  Files         25     25           
  Lines       1766   1771    +5     
====================================
+ Hits         435    437    +2     
- Misses      1331   1334    +3     

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