remote inference: add connector; fine tune ML model and tensor class

[ylwu-amzn]

Description

[Describe what this change achieves]

Issues Resolved

[List any issues this PR will resolve]

Check List

• New functionality includes testing.
  • All tests pass
• New functionality has been documented.
  • New functionality has javadoc added
• Commits are signed per the DCO using --signoff

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[codecov]

Codecov Report

Merging #1051 (aa1471c) into 2.x (8139f8f) will decrease coverage by 2.75%.
The diff coverage is 51.30%.

@@             Coverage Diff              @@
##                2.x    #1051      +/-   ##
============================================
- Coverage     82.32%   79.57%   -2.75%     
+ Complexity     1920     1879      -41     
============================================
  Files           149      151       +2     
  Lines          7507     7589      +82     
  Branches        750      756       +6     
============================================
- Hits           6180     6039     -141     
- Misses          987     1222     +235     
+ Partials        340      328      -12     

Flag	Coverage Δ
ml-commons	79.57% <51.30%> (-2.75%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...l/engine/algorithms/ad/AnomalyDetectionLibSVM.java	86.84% <ø> (ø)
...search/ml/engine/algorithms/clustering/KMeans.java	91.93% <ø> (ø)
.../ml/engine/algorithms/clustering/RCFSummarize.java	82.95% <ø> (ø)
...rithms/metrics_correlation/MetricsCorrelation.java	0.00% <0.00%> (-36.08%)	⬇️
...ml/engine/algorithms/rcf/BatchRandomCutForest.java	89.18% <ø> (ø)
...ine/algorithms/rcf/FixedInTimeRandomCutForest.java	85.43% <ø> (ø)
...engine/algorithms/regression/LinearRegression.java	91.83% <ø> (ø)
...gine/algorithms/regression/LogisticRegression.java	80.00% <ø> (ø)
...search/ml/engine/algorithms/sample/SampleAlgo.java	83.33% <ø> (ø)
...va/org/opensearch/ml/engine/utils/ScriptUtils.java	0.00% <0.00%> (ø)
... and 13 more

... and 2 files with indirect coverage changes