Add truncation and padding setter APIs to tokenizers

[siddvenk]

Description

Adds truncation and padding support in parity with the fast tokenizers provided by hugging face tokenizers and transformers library.

This change adds the relevant java apis and makes it possible for users to configure truncation and padding behavior after loading their tokenizer model.

The rust APIs allow for more customization than this implementation, the python tokenizer implementation, and python transofrmer implementation allow. If users need more customization than what we provide, we can extend our api to allow it.

After this change, the next step is to add functionality to load truncation and padding behavior from the serving.properties file so that these configurations can be set during initialization. A subsequent PR will address that functionality.

[codecov-commenter]

Codecov Report

Merging #1870 (8396f71) into master (bb5073f) will decrease coverage by 2.31%.
The diff coverage is 64.69%.

@@             Coverage Diff              @@
##             master    #1870      +/-   ##
============================================
- Coverage     72.08%   69.77%   -2.32%     
- Complexity     5126     5549     +423     
============================================
  Files           473      527      +54     
  Lines         21970    24501    +2531     
  Branches       2351     2667     +316     
============================================
+ Hits          15838    17095    +1257     
- Misses         4925     6095    +1170     
- Partials       1207     1311     +104     

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%)	⬇️
...odality/cv/translator/BigGANTranslatorFactory.java	33.33% <0.00%> (+8.33%)	⬆️
...nslator/InstanceSegmentationTranslatorFactory.java	14.28% <0.00%> (-3.90%)	⬇️
.../cv/translator/SemanticSegmentationTranslator.java	0.00% <0.00%> (ø)
.../cv/translator/StyleTransferTranslatorFactory.java	40.00% <ø> (ø)
... and 422 more

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