[Backport 2.x] Introduce Remote translog feature flag (#4158)

[andrross]

• Introduce Remote translog feature flag
• Limit combinations of remote segment and translog store to valid ones

Signed-off-by: Bukhtawar Khan [email protected]
(cherry picked from commit a469a3c)

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)

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[andrross]

FYI @Bukhtawar

#4318 depends on this PR so I'm starting here and then will backport that change next. My immediate goal is to backport #4813 which depends on #4318.

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: FAILURE ❌
• URL: https://build.ci.opensearch.org/job/gradle-check/5087/
• CommitID: 4e4828c

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: FAILURE ❌
• URL: https://build.ci.opensearch.org/job/gradle-check/5088/
• CommitID: 0c629fb

[andrross]

Same failure as #4831

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: FAILURE ❌
• URL: https://build.ci.opensearch.org/job/gradle-check/5103/
• CommitID: 0c629fb

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: FAILURE ❌
• URL: https://build.ci.opensearch.org/job/gradle-check/5180/
• CommitID: 07960ab

[Bukhtawar]

LGTM, we need the build to pass :(

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: SUCCESS ✅
• URL: https://build.ci.opensearch.org/job/gradle-check/5223/
• CommitID: 5181ad4