CNDB-15619: Allow to customize SAI format to write and to consider as current() depending on a keyspace

[adelapena]

What is the issue

See https://github.com/riptano/cndb/issues/15619

What does this PR fix and why was it fixed

There is a new cassandra.sai.version.selector.class system property allowing to provide an implementation of the o.a.c.index.sai.disk.format.Version.Selector interface to specify that version of the SAI on-disk index format should be used for each keyspace.

This is a cherry-pick of #2041

[github-actions]

Checklist before you submit for review

• Make sure there is a PR in the CNDB project updating the Converged Cassandra version
• Use NoSpamLogger for log lines that may appear frequently in the logs
• Verify test results on Butler
• Test coverage for new/modified code is > 80%
• Proper code formatting
• Proper title for each commit staring with the project-issue number, like CNDB-1234
• Each commit has a meaningful description
• Each commit is not very long and contains related changes
• Renames, moves and reformatting are in distinct commits
• All new files should contain the DataStax copyright header instead of the Apache License one

[sonarqubecloud]

Quality Gate passed

Issues
3 New issues
0 Accepted issues

Measures
0 Security Hotspots
89.8% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[cassci-bot]

❌ Build ds-cassandra-pr-gate/PR-2064 rejected by Butler

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2 regressions found
See build details here

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Found 2 new test failures

Test	Explanation	Runs	Upstream
paxos_test.TestPaxos.test_contention_many_threads (offheap-bti)	NEW	🔴	0 / 0
o.a.c.db.counters.CounterLockManagerTest.testInterruptedExceptionCachedCounterLockManager (compression)	NEW	🔴	0 / 0

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No known test failures found

[adelapena]

@pcmanus @eolivelli could you please review this port of #2041 ?

[pcmanus]

Lgtm.