[api] Adds serving support for some CV models

[frankfliu]

Description

Brief description of what this PR is about

• If this change is a backward incompatible change, why must this change be made?
• Interesting edge cases to note here

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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 58.92%. Comparing base (b6656ed) to head (2c3487a).
Report is 6 commits behind head on master.

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Additional details and impacted files

@@              Coverage Diff              @@
##             master    #3499       +/-   ##
=============================================
- Coverage     72.52%   58.92%   -13.61%     
+ Complexity     7394     5851     -1543     
=============================================
  Files           672      674        +2     
  Lines         32909    33021      +112     
  Branches       3501     3516       +15     
=============================================
- Hits          23868    19457     -4411     
- Misses         7400    12082     +4682     
+ Partials       1641     1482      -159     

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