[api] Visualize sam2 output for Sam2ServingTranslator

[frankfliu]

• [api] Adds sam2 model to onnxruntime model zoo
• [api] Standardizes CV output format
• [api] Visualize sam2 output for Sam2ServingTranslator

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

[codecov-commenter]

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Codecov Report

Attention: Patch coverage is 63.97849% with 67 lines in your changes missing coverage. Please review.

Project coverage is 72.39%. Comparing base (b6656ed) to head (7020502).
Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
.../modality/cv/translator/Sam2ServingTranslator.java	8.33%	33 Missing ⚠️
.../ai/djl/modality/cv/translator/Sam2Translator.java	73.91%	14 Missing and 4 partials ⚠️
...pencv/src/main/java/ai/djl/opencv/OpenCVImage.java	0.00%	11 Missing ⚠️
...main/java/ai/djl/onnxruntime/engine/OrtEngine.java	33.33%	1 Missing and 1 partial ⚠️
...ava/ai/djl/modality/cv/output/DetectedObjects.java	66.66%	0 Missing and 1 partial ⚠️
.../modality/cv/translator/Sam2TranslatorFactory.java	75.00%	0 Missing and 1 partial ⚠️
...pi/src/main/java/ai/djl/util/JsonSerializable.java	80.00%	1 Missing ⚠️

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Additional details and impacted files

@@             Coverage Diff              @@
##             master    #3494      +/-   ##
============================================
- Coverage     72.52%   72.39%   -0.13%     
- Complexity     7394     7410      +16     
============================================
  Files           672      674       +2     
  Lines         32909    33027     +118     
  Branches       3501     3516      +15     
============================================
+ Hits          23868    23911      +43     
- Misses         7400     7483      +83     
+ Partials       1641     1633       -8     

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