feat: add DetectOrientationScript method

[joelrose]

This exposes the DetectOrientationScript method. I've used this for quite some time privately and would like to bring this upstream.

[codecov]

Codecov Report

Attention: Patch coverage is 52.63158% with 18 lines in your changes are missing coverage. Please review.

Project coverage is 69.25%. Comparing base (d85513d) to head (29d25d8).
Report is 7 commits behind head on main.

Files	Patch %	Lines
client.go	52.63%	12 Missing and 6 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #299      +/-   ##
==========================================
- Coverage   71.47%   69.25%   -2.23%     
==========================================
  Files           1        1              
  Lines         284      322      +38     
==========================================
+ Hits          203      223      +20     
- Misses         67       79      +12     
- Partials       14       20       +6     

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[rubiojr]

This has been helpful to me 🙏. Worth mentioning perhaps that using this requires an optional (in Fedora Linux at least) package that needs to be installed (tesseract-osd), or you'll get a failed to initialize TessBaseAPI with code -1 runtime error, which was confusing.

[otiai10]

Alpine test is failing. (please ignore vagrant)

[joelrose]

Hi @otiai10, thanks for your review! I've fixed the issue, so the alpine test should pass now. Could you review again or merge if all's good? Thanks!