🐛 Fix TIFFWSIReader read_bound

[vqdang]

Emergency bugfix per @John-P request.
The culprit is reading bound doesn't use the adjusted bounds as have been done in OpenSlideReader

[shaneahmed]

Thanks @vqdang and @John-P Please can you add a simple test to make sure this produces expected results.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.89%. Comparing base (3da5ca2) to head (13d3293).

Additional details and impacted files

@@           Coverage Diff            @@
##           develop     #777   +/-   ##
========================================
  Coverage    99.89%   99.89%           
========================================
  Files           69       69           
  Lines         8588     8588           
  Branches      1645     1645           
========================================
  Hits          8579     8579           
  Misses           1        1           
  Partials         8        8           

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[shaneahmed]

Please can you also check if it is related to #499 ?

[Abdol]

I have added a simple test but not completely sure if it fully tests for the fixed bug. @vqdang @John-P I'd appreciate it if you can give the test a review.