[Remote Store] Add support for Remote Translog Store stats in _remotestore/stats/ API

[BhumikaSaini-Amazon]

Description

Backport for #9263

Related Issues

#8311

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
• Commit changes are listed out in CHANGELOG.md file (See: Changelog)

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.
For more information on following Developer Certificate of Origin and signing off your commits, please check here.

[github-actions]

Compatibility status:

Checks if related components are compatible with change 93c71d9

Incompatible components

Incompatible components: [https://github.com/opensearch-project/performance-analyzer.git]

Skipped components

Compatible components

Compatible components: [https://github.com/opensearch-project/security.git, https://github.com/opensearch-project/alerting.git, https://github.com/opensearch-project/index-management.git, https://github.com/opensearch-project/anomaly-detection.git, https://github.com/opensearch-project/asynchronous-search.git, https://github.com/opensearch-project/sql.git, https://github.com/opensearch-project/observability.git, https://github.com/opensearch-project/common-utils.git, https://github.com/opensearch-project/job-scheduler.git, https://github.com/opensearch-project/reporting.git, https://github.com/opensearch-project/cross-cluster-replication.git, https://github.com/opensearch-project/k-nn.git, https://github.com/opensearch-project/geospatial.git, https://github.com/opensearch-project/notifications.git, https://github.com/opensearch-project/ml-commons.git, https://github.com/opensearch-project/neural-search.git, https://github.com/opensearch-project/performance-analyzer-rca.git, https://github.com/opensearch-project/security-analytics.git]

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: FAILURE ❌
• URL: https://build.ci.opensearch.org/job/gradle-check/24374/
• CommitID: 93c71d9
  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]

Compatibility status:

Checks if related components are compatible with change bbfe80b

Incompatible components

Incompatible components: [https://github.com/opensearch-project/performance-analyzer.git]

Skipped components

Compatible components

Compatible components: [https://github.com/opensearch-project/security.git, https://github.com/opensearch-project/alerting.git, https://github.com/opensearch-project/anomaly-detection.git, https://github.com/opensearch-project/asynchronous-search.git, https://github.com/opensearch-project/index-management.git, https://github.com/opensearch-project/sql.git, https://github.com/opensearch-project/common-utils.git, https://github.com/opensearch-project/observability.git, https://github.com/opensearch-project/job-scheduler.git, https://github.com/opensearch-project/reporting.git, https://github.com/opensearch-project/cross-cluster-replication.git, https://github.com/opensearch-project/k-nn.git, https://github.com/opensearch-project/geospatial.git, https://github.com/opensearch-project/notifications.git, https://github.com/opensearch-project/ml-commons.git, https://github.com/opensearch-project/neural-search.git, https://github.com/opensearch-project/security-analytics.git, https://github.com/opensearch-project/performance-analyzer-rca.git]

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: FAILURE ❌
• URL: https://build.ci.opensearch.org/job/gradle-check/24400/
• CommitID: bbfe80b
  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?

[BhumikaSaini-Amazon]

• org.opensearch.gateway.remote.ClusterMetadataManifestTests.testClusterMetadataManifestSerializationEqualsHashCode => reported flaky in [BUG] ClusterMetadataManifestTests testClusterMetadataManifestSerializationEqualsHashCode seems flaky #9688
• Failures from build https://build.ci.opensearch.org/job/gradle-check/24374/ have also been reported flaky: [BUG] org.opensearch.repositories.azure.AzureBlobContainerRetriesTests.testWriteBlobWithRetries is faky #7934 and [BUG] Test org.opensearch.indices.replication.SegmentReplicationSuiteIT is flaky #9499

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: SUCCESS ✅
• URL: https://build.ci.opensearch.org/job/gradle-check/24403/
• CommitID: bbfe80b

[codecov]

Codecov Report

Merging #9738 (bbfe80b) into 2.x (26197f3) will decrease coverage by 0.01%.
Report is 4 commits behind head on 2.x.
The diff coverage is 86.39%.

@@             Coverage Diff              @@
##                2.x    #9738      +/-   ##
============================================
- Coverage     70.98%   70.98%   -0.01%     
+ Complexity    58020    58016       -4     
============================================
  Files          4794     4796       +2     
  Lines        273521   273853     +332     
  Branches      40232    40250      +18     
============================================
+ Hits         194155   194381     +226     
- Misses        62819    62840      +21     
- Partials      16547    16632      +85     

Files Changed	Coverage Δ
...testore/stats/TransportRemoteStoreStatsAction.java	41.02% <0.00%> (-3.42%)	⬇️
...arch/index/remote/RemoteStorePressureSettings.java	87.09% <ø> (ø)
...ain/java/org/opensearch/indices/IndicesModule.java	98.23% <ø> (-0.02%)	⬇️
...ch/index/remote/RemoteTranslogTransferTracker.java	78.91% <78.91%> (ø)
...search/index/shard/RemoteStoreRefreshListener.java	86.26% <80.00%> (ø)
...rg/opensearch/index/translog/RemoteFsTranslog.java	72.58% <86.20%> (+2.48%)	⬆️
...earch/index/remote/RemoteStorePressureService.java	85.00% <87.50%> (+0.51%)	⬆️
...opensearch/index/remote/RemoteTransferTracker.java	88.57% <88.57%> (ø)
...dex/translog/transfer/TranslogTransferManager.java	78.96% <90.56%> (+2.00%)	⬆️
...h/index/translog/transfer/FileTransferTracker.java	92.98% <90.90%> (-1.62%)	⬇️
... and 6 more

... and 441 files with indirect coverage changes