Prs need to be included in 4.16.0

[hangc0276]

This issue is used to track Prs that need to be included in the BookKeeper 4.16.0 release.

• Rename bookkeeper metrics to specify OpenMetrics #3406
• Fix autoRecover memory leak. #3361
• Consolidate Netty channel flushes to mitigate syscall overhead #3383
• Switch back ordered executor to LinkedBlockingQueue #3384
• [Issue 3389] Prioritize compaction of entry logs with the lowest amount of remaining usable data #3390
• Avoid init WriteSet when waitForWriteSetMs < 0. #3325
• Fix data lost when configured multiple ledger directories #3329
• Tuing PendingReadOp.java seq #3330
• Feature: auto recover support repaired not adhering placement ledger #3359
• Added flag to control whether to transition to read-only mode when any disks full #3212
• BP-50: Add reuse journal file feature to support Intel PMem disk #3194

If you have more Prs that need to be included, please add them to the above list.

[hezhangjian]

#3435 I think this PR should be included in 4.16.0. It's useful for embedded bookkeeper users