Vertically reflect JPK images

[derollins]

As described in issue #126 JPK images are vertically reflected and need to be flipped to correct. This pull request adds the ability of the load_jpk() function to do this correction, with the option flip_image added to set this option.

Additionally, I added error handling to the reading of the TIFF tags but, this made _get_z_scaling() too complicated for pre-commit, so I separated out the tag value reading to another function.

I also corrected a typo in the examples notebook.

[derollins]

This is the updated (flipped) output with the same images opened in other data processing software:

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 69.23077% with 8 lines in your changes missing coverage. Please review.

Project coverage is 75.41%. Comparing base (ac9753c) to head (b4370e9).
Report is 53 commits behind head on main.

Files with missing lines	Patch %	Lines
AFMReader/jpk.py	69.23%	8 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #129      +/-   ##
==========================================
+ Coverage   74.62%   75.41%   +0.78%     
==========================================
  Files           8        9       +1     
  Lines         607      720     +113     
==========================================
+ Hits          453      543      +90     
- Misses        154      177      +23     

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[ns-rse]

Thanks @derollins for the PR.

I've one very minor suggestion which I should be able to merge directly here to save the need for you to change and push.