Add figures for model zoo

[wangruohui]

[CLAassistant]

All committers have signed the CLA.

[wangruohui]

SVG are changed to LFS

[wangruohui]

LFS is not permitted if it is not enabled upstream. Thus I amended commits and push only the script.

[wangruohui]

[digantamisra98]

@hellock any updates on this?

[codecov[bot]]

Codecov Report

Patch and project coverage have no change.

Comparison is base (759aa92) 73.35% compared to head (0052cf4) 73.35%. Report is 380 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master      #95   +/-   ##
=======================================
  Coverage   73.35%   73.35%           
=======================================
  Files          86       86           
  Lines        4395     4395           
  Branches      770      770           
=======================================
  Hits         3224     3224           
  Misses       1071     1071           
  Partials      100      100           

Flag	Coverage Δ
unittests	73.35% <ø> (ø)

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