Resolve version conflicts

[zhiqwang]

This is follow-up of #194 .

• Resolver version conflicts.
• Rename yolotr to yolov5ts, which is BC-breaking.
• Add yolov5ts to hubconf.py .

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[codecov]

Codecov Report

Merging #195 (b05a07a) into master (1c616c7) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master     #195   +/-   ##
=======================================
  Coverage   96.49%   96.49%           
=======================================
  Files          10       10           
  Lines         599      599           
=======================================
  Hits          578      578           
  Misses         21       21           

Flag	Coverage Δ
unittests	96.49% <100.00%> (ø)

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Impacted Files	Coverage Δ
test/test_onnx.py	85.24% <ø> (ø)
test/test_models.py	95.37% <100.00%> (ø)

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