Clean SegmentMIF

[ryanccarelli]

#293 Tensorflow devices should not be configured in SegmentMIF, they should be managed by the user

Correctly pass pre/postprocess_kwargs arguments to predict

[codecov-commenter]

Codecov Report

Merging #294 (fccbf87) into dev (65ecf6c) will decrease coverage by 0.07%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##              dev     #294      +/-   ##
==========================================
- Coverage   86.93%   86.86%   -0.08%     
==========================================
  Files          26       26              
  Lines        2441     2443       +2     
==========================================
  Hits         2122     2122              
- Misses        319      321       +2     

Impacted Files	Coverage Δ
pathml/preprocessing/transforms.py	88.75% <100.00%> (+0.03%)	⬆️
pathml/ml/hovernet.py	92.00% <0.00%> (-0.58%)	⬇️

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