[Refactor] Serverless common classes to libraries

[nknize]

This PR refactors common classes that are decoupled from the server implementation from the :server common package to the :libs:opensearch-common and :libs:opensearch-core library so they can be used across serverless and cloud native implementations without depending on the monolithic :server module and all transitive dependencies.

dependency of #8035
relates #5910

[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/17580/
• CommitID: 28a02b8
  Please review all flaky tests that succeeded after retry and create an issue if one does not already exist to track the flaky failure.

[kotwanikunal]

I think this change should have a changelog entry.

[nknize]

I think this change should have a changelog entry.

We haven't decided if these refactors will be backported to 2.x yet so changlog isn't being updated yet. That will be done in bulk if/when we decide which version the refactoring will be released.

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: FAILURE ❌
• URL: https://build.ci.opensearch.org/job/gradle-check/17621/
• CommitID: 0a08916
  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: FAILURE ❌
• URL: https://build.ci.opensearch.org/job/gradle-check/17629/
• CommitID: 0a08916
  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.search.backpressure.SearchBackpressureIT.testSearchTaskCancellationWithHighCpu
      1 org.opensearch.remotestore.RemoteStoreRefreshListenerIT.testRemoteRefreshRetryOnFailure
      1 org.opensearch.indices.replication.SegmentReplicationTargetServiceTests.testStartReplicationListenerSuccess

• URL: https://build.ci.opensearch.org/job/gradle-check/17637/
• CommitID: 6ecc26a
  Please review all flaky tests that succeeded after retry and create an issue if one does not already exist to track the flaky failure.

[codecov]

Codecov Report

Merging #8065 (fe0d40f) into main (606255f) will increase coverage by 0.11%.
The diff coverage is 100.00%.

@@             Coverage Diff              @@
##               main    #8065      +/-   ##
============================================
+ Coverage     70.85%   70.97%   +0.11%     
- Complexity    56553    56672     +119     
============================================
  Files          4722     4722              
  Lines        267594   267594              
  Branches      39212    39212              
============================================
+ Hits         189600   189912     +312     
+ Misses        61983    61678     -305     
+ Partials      16011    16004       -7     

Impacted Files	Coverage Δ
...n/src/main/java/org/opensearch/common/Classes.java	66.66% <ø> (ø)
.../src/main/java/org/opensearch/common/Explicit.java	63.63% <ø> (ø)
...rch/common/ExponentiallyWeightedMovingAverage.java	100.00% <ø> (ø)
...in/java/org/opensearch/common/LocalTimeOffset.java	87.75% <ø> (ø)
...java/org/opensearch/common/MacAddressProvider.java	40.62% <ø> (ø)
...main/java/org/opensearch/common/NamedRegistry.java	100.00% <ø> (ø)
...rg/opensearch/common/RandomBasedUUIDGenerator.java	100.00% <ø> (ø)
...java/org/opensearch/common/SecureRandomHolder.java	50.00% <ø> (ø)
...src/main/java/org/opensearch/common/StopWatch.java	48.33% <ø> (ø)
.../org/opensearch/common/TimeBasedUUIDGenerator.java	84.37% <ø> (ø)
... and 141 more

... and 474 files with indirect coverage changes

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: FAILURE ❌
• URL: https://build.ci.opensearch.org/job/gradle-check/17691/
• CommitID: 51ce245
  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?

[nknize]

Unrelated BWC failures... rebased and pushed update.

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: FAILURE ❌
• URL: https://build.ci.opensearch.org/job/gradle-check/17709/
• CommitID: 40ebe87
  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.cluster.allocation.AwarenessAllocationIT.testThreeZoneOneReplicaWithForceZoneValueAndLoadAwareness

• URL: https://build.ci.opensearch.org/job/gradle-check/17727/
• CommitID: fe0d40f
  Please review all flaky tests that succeeded after retry and create an issue if one does not already exist to track the flaky failure.

[opensearch-trigger-bot]

The backport to 2.x 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.x 2.x
# Navigate to the new working tree
pushd ../.worktrees/backport-2.x
# Create a new branch
git switch --create backport/backport-8065-to-2.x
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick -x --mainline 1 8eea7b986453271cd227a7b98ee09e70d5e28634
# Push it to GitHub
git push --set-upstream origin backport/backport-8065-to-2.x
# Go back to the original working tree
popd
# Delete the working tree
git worktree remove ../.worktrees/backport-2.x

Then, create a pull request where the base branch is 2.x and the compare/head branch is backport/backport-8065-to-2.x.