[api] add loadModel() to Critiera

[frankfliu]

Change-Id: Ie5c9f59ec283c780c323b2a99c440f416369c5fb

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]

Codecov Report

Merging #1018 (cbcb5d6) into master (50600fd) will decrease coverage by 0.03%.
The diff coverage is 83.60%.

@@             Coverage Diff              @@
##             master    #1018      +/-   ##
============================================
- Coverage     70.03%   70.00%   -0.04%     
- Complexity     5106     5123      +17     
============================================
  Files           504      504              
  Lines         22601    22677      +76     
  Branches       2367     2375       +8     
============================================
+ Hits          15828    15874      +46     
- Misses         5508     5537      +29     
- Partials       1265     1266       +1     

Impacted Files	Coverage Δ
api/src/main/java/ai/djl/ndarray/NDArray.java	73.25% <0.00%> (-0.43%)	⬇️
...c/main/java/ai/djl/pytorch/jni/PyTorchLibrary.java	100.00% <ø> (ø)
...src/main/java/ai/djl/pytorch/engine/PtNDArray.java	79.75% <50.00%> (-0.15%)	⬇️
.../src/main/java/ai/djl/repository/zoo/Criteria.java	88.33% <84.61%> (-1.52%)	⬇️
.../src/main/java/ai/djl/repository/zoo/ModelZoo.java	60.34% <100.00%> (-12.47%)	⬇️
...ine/src/main/java/ai/djl/pytorch/jni/JniUtils.java	90.64% <100.00%> (+0.07%)	⬆️
api/src/main/java/ai/djl/repository/Artifact.java	93.10% <0.00%> (+1.72%)	⬆️
...pi/src/main/java/ai/djl/ndarray/BaseNDManager.java	55.49% <0.00%> (+2.02%)	⬆️

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[zachgk]

We should also move the listModels as well