KAFKA-17568 Rewrite TestPurgatoryPerformance by JMH

[m1a2st]

Jira: https://issues.apache.org/jira/browse/KAFKA-17568 Move TestPurgatoryPerformance from Scala to Java, and transfer to use benchmark.

Committer Checklist (excluded from commit message)

• [ ] Verify design and implementation
• [ ] Verify test coverage and CI build status
• [ ] Verify documentation (including upgrade notes)

[m1a2st]

Benchmark	(numKeys)	(numPossibleKeys)	(numRequests)	(pct50)	(pct75)	(requestRate)	(timeout)	Mode	Cnt	Score	Error	Units
TestPurgatoryPerformance.testPurgatoryPerformance	3	100	100	0.5	0.75	10.0	1000	thrpt	15	≈ 10⁻¹⁰		ops/ns
TestPurgatoryPerformance.testPurgatoryPerformance	3	100	100	0.5	0.75	10.0	1000	avgt	15	11568900851.367	± 725751170.308	ns/op

[m1a2st]

Thanks for your suggestion, I will change it to plain Java

[m1a2st]

my local mashine can run the test