add available weights to SMP

[aniketmaurya]

What does this PR do?

Fixes #517 #518 #519

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[codecov]

Codecov Report

Merging #587 (5492d31) into master (9c42528) will increase coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #587      +/-   ##
==========================================
+ Coverage   90.63%   90.65%   +0.01%     
==========================================
  Files         132      132              
  Lines        7766     7777      +11     
==========================================
+ Hits         7039     7050      +11     
  Misses        727      727              

Flag	Coverage Δ
unittests	90.65% <100.00%> (+0.01%)	⬆️

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Impacted Files	Coverage Δ
flash/image/segmentation/backbones.py	100.00% <100.00%> (ø)
flash/image/segmentation/heads.py	95.45% <100.00%> (+0.71%)	⬆️
flash/image/segmentation/model.py	90.66% <100.00%> (+0.96%)	⬆️

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[ethanwharris]

Awesome, looking really neat 😃 I think the only thing that's missing is checking if pretrained is a string when loading the head and using that for the weights path

[aniketmaurya]

Awesome, looking really neat 😃 I think the only thing that's missing is checking if pretrained is a string when loading the head and using that for the weights path

updated @ethanwharris ✅

[ethanwharris]

Awesome!