Update quantify mif

[jacob-rosenthal]

A couple minor updates to QuantifyMIF:

• update the functional implementation F() to not require a tile object. Instead it can be applied on any given image and mask
• Add "label" property to counts matrix. This is useful for linking the counts matrix to the image and mask

[codecov-commenter]

Codecov Report

Merging #301 (eec69b9) into dev (65ecf6c) will decrease coverage by 0.07%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##              dev     #301      +/-   ##
==========================================
- 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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[BeeGass]

I wrote a couple of comments within transforms.py. Its well written and I dont see anything obviously wrong, I just suggested some quality of life changes. They arent pressing changes so im going to approve.