[Backport 2.x] Adding Remote translog upload, download and failover changes

[gbbafna]

Description

#5755
#5638
#5392
#5649
#5699

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
• 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]

Gradle Check (Jenkins) Run Completed with:

• RESULT: FAILURE ❌
• URL: https://build.ci.opensearch.org/job/gradle-check/9062/
• CommitID: eafe2f6
  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 (Jenkins) Run Completed with:

• RESULT: UNSTABLE ❕
• TEST FAILURES:

      1 org.opensearch.repositories.azure.AzureBlobContainerRetriesTests.testWriteLargeBlob

• URL: https://build.ci.opensearch.org/job/gradle-check/9064/
• CommitID: f813260
  Please review all flaky tests that succeeded after retry and create an issue if one does not already exist to track the flaky failure.

[Bukhtawar]

Lets fix the change log to include what has been added

[gbbafna]

Added #5392 for Remote Translog Functionality

[ashking94]

@gbbafna changelog from https://github.com/opensearch-project/OpenSearch/pull/5699/files#diff-06572a96a58dc510037d5efa622f9bec8519bc1beab13c9f251e97e657a9d4ed is also not there. can you add that?

[sachinpkale]

Add support for refresh level durability is added under Added, we can remove it from here. Also, we can remove segment store integration in failover flow entry.

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: UNSTABLE ❕
• TEST FAILURES:

      2 org.opensearch.cluster.service.MasterServiceTests.classMethod
      1 org.opensearch.cluster.service.MasterServiceTests.testThrottlingForMultipleTaskTypes

• URL: https://build.ci.opensearch.org/job/gradle-check/9068/
• CommitID: 50ee2d1
  Please review all flaky tests that succeeded after retry and create an issue if one does not already exist to track the flaky failure.

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: FAILURE ❌
• URL: https://build.ci.opensearch.org/job/gradle-check/9070/
• CommitID: 65277f2
  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 (Jenkins) Run Completed with:

• RESULT: SUCCESS ✅
• URL: https://build.ci.opensearch.org/job/gradle-check/9072/
• CommitID: 654dd56

[opensearch-trigger-bot]

The backport to 2.5 failed:

The process '/usr/bin/git' failed with exit code 128

To backport manually, run these commands in your terminal:

# Fetch latest updates from GitHub
git fetch
# Create a new working tree
git worktree add ../.worktrees/backport-2.5 2.5
# Navigate to the new working tree
pushd ../.worktrees/backport-2.5
# Create a new branch
git switch --create backport/backport-5757-to-2.5
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick -x --mainline 1 d694685c109b189443fde2340599720116c24c4c
# Push it to GitHub
git push --set-upstream origin backport/backport-5757-to-2.5
# Go back to the original working tree
popd
# Delete the working tree
git worktree remove ../.worktrees/backport-2.5

Then, create a pull request where the base branch is 2.5 and the compare/head branch is backport/backport-5757-to-2.5.