Add support for custom index name resolver from cluster plugin

[Gagan6164]

Description

Add support for cluster plugins to provide their implementation for Index name expression resolvers as per their needs.

Related Issues

Resolves #18676

Check List

• Functionality includes testing.
• API changes companion pull request created, if applicable.
• Public documentation issue/PR created, if applicable.

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[github-actions]

✅ Gradle check result for 1215cfc: SUCCESS

[codecov]

Codecov Report

Attention: Patch coverage is 88.00000% with 3 lines in your changes missing coverage. Please review.

Project coverage is 72.81%. Comparing base (d404f33) to head (2219cc6).
Report is 39 commits behind head on main.

Files with missing lines	Patch %	Lines
.../cluster/metadata/IndexNameExpressionResolver.java	82.35%	2 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main   #18593      +/-   ##
============================================
+ Coverage     72.76%   72.81%   +0.05%     
- Complexity    68167    68205      +38     
============================================
  Files          5541     5542       +1     
  Lines        313426   313454      +28     
  Branches      45479    45480       +1     
============================================
+ Hits         228062   228255     +193     
+ Misses        66709    66616      -93     
+ Partials      18655    18583      -72     

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[rishabhmaurya]

@Gagan6164 I'm curious where do we need it? some background will be helpful.

[Gagan6164]

@Gagan6164 I'm curious where do we need it? some background will be helpful.

@rishabhmaurya Captured the requirement/background details in this issue #18676 . Do let me know if additional details are required.

[github-actions]

❌ Gradle check result for d033f96: FAILURE

Please examine the workflow log, locate, and copy-paste the failure(s) below, then iterate to green. Is the failure a flaky test unrelated to your change?

[github-actions]

❌ Gradle check result for d27cb36: FAILURE

Please examine the workflow log, locate, and copy-paste the failure(s) below, then iterate to green. Is the failure a flaky test unrelated to your change?

[github-actions]

✅ Gradle check result for 2219cc6: SUCCESS