[spark] Add pyspark TextEmbedder and update ImageClassifier

[xyang16]

Description

Brief description of what this PR is about

Add pyspark TextEmbedder

[codecov-commenter]

Codecov Report

Base: 72.08% // Head: 74.14% // Increases project coverage by +2.05% 🎉

Coverage data is based on head (58a8cf4) compared to base (bb5073f).
Patch coverage: 73.72% of modified lines in pull request are covered.

❗ Current head 58a8cf4 differs from pull request most recent head 8908f80. Consider uploading reports for the commit 8908f80 to get more accurate results

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Additional details and impacted files

@@             Coverage Diff              @@
##             master    #2414      +/-   ##
============================================
+ Coverage     72.08%   74.14%   +2.05%     
- Complexity     5126     6794    +1668     
============================================
  Files           473      669     +196     
  Lines         21970    29599    +7629     
  Branches       2351     3057     +706     
============================================
+ Hits          15838    21946    +6108     
- Misses         4925     6166    +1241     
- Partials       1207     1487     +280     

Impacted Files	Coverage Δ
api/src/main/java/ai/djl/modality/cv/Image.java	69.23% <ø> (-4.11%)	⬇️
...rc/main/java/ai/djl/modality/cv/MultiBoxPrior.java	76.00% <ø> (ø)
...rc/main/java/ai/djl/modality/cv/output/Joints.java	71.42% <ø> (ø)
.../main/java/ai/djl/modality/cv/output/Landmark.java	100.00% <ø> (ø)
...main/java/ai/djl/modality/cv/output/Rectangle.java	72.41% <0.00%> (ø)
...i/djl/modality/cv/translator/BigGANTranslator.java	21.42% <0.00%> (-5.24%)	⬇️
.../modality/cv/translator/ImageFeatureExtractor.java	0.00% <0.00%> (ø)
.../ai/djl/modality/cv/translator/YoloTranslator.java	27.77% <0.00%> (+18.95%)	⬆️
...ain/java/ai/djl/modality/cv/util/NDImageUtils.java	67.10% <0.00%> (+7.89%)	⬆️
api/src/main/java/ai/djl/modality/nlp/Decoder.java	63.63% <ø> (ø)
... and 635 more

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