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Add MergeTree Write-Ahead-Log Dump Tool

Add MergeTree Write-Ahead-Log (WAL) dump tool. WAL is an experimental feature. #13640 (BohuTANG).
MergeTree Write-Ahead-Log (WAL) dump tool has been added to ClickHouse as an experimental feature.

Why it matters

This feature provides a tool to dump the Write-Ahead-Log of MergeTree tables, allowing users to inspect and analyze WAL data. It helps in debugging, data recovery scenarios, and better understanding of WAL internals for performance tuning and troubleshooting.

How to use it

Users can enable and use the WAL dump tool to extract and view Write-Ahead-Log contents associated with MergeTree tables. Since WAL is experimental, users should enable WAL in the table settings and then invoke the dump tool via the appropriate CLI commands or utilities provided in the ClickHouse environment.