Add a tool to make it easy to put together perfasm output with lucene-util benchmarks. [LUCENE-10117]

Will be a bit of work to get this finalized, but essentially you add a simple custom cmd to your local constants file, run benchmarks, and then run a simple class main method to parse and output perfasm output al-la #9012. Requires Java setup that works with print assembly option.

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Migrated from [LUCENE-10117](https://issues.apache.org/jira/browse/LUCENE-10117) by Mark Robert Miller (@markrmiller)
Linked issues:
- #11137

Start by reviewing the perfasm approach in #9012 and the linked issue #11137, then locate the local constants setup and lucene-util benchmark entry points. The intended result is a custom command for running benchmarks plus a Java main method that parses and emits perfasm output; verify it with a Java setup supporting print assembly.

Written by the indexing model from the issue text.