[api] Adds mask generation task for sam2 model

[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

[codecov-commenter]

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Codecov Report

Attention: Patch coverage is 83.33333% with 1 line in your changes missing coverage. Please review.

Project coverage is 72.60%. Comparing base (5c418be) to head (efb819a).
Report is 7 commits behind head on master.

Files with missing lines	Patch %	Lines
api/src/main/java/ai/djl/Application.java	50.00%	1 Missing ⚠️

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Additional details and impacted files

@@             Coverage Diff              @@
##             master    #3450      +/-   ##
============================================
+ Coverage     72.57%   72.60%   +0.02%     
- Complexity     7377     7389      +12     
============================================
  Files           669      671       +2     
  Lines         32658    32785     +127     
  Branches       3474     3482       +8     
============================================
+ Hits          23701    23803     +102     
- Misses         7319     7342      +23     
- Partials       1638     1640       +2     

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