RFR: 7903960: JMH: Add Maven Wrapper integration [v2]

[Volkan Yazici]

> Adds Maven Wrapper integration. See the ticket description for details.

Volkan Yazici has updated the pull request incrementally with one additional commit since the last revision:

  Update execution instructions

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Changes:
  - all: https://git.openjdk.org/jmh/pull/154/files
  - new: https://git.openjdk.org/jmh/pull/154/files/fb575e5a..a2a3b9c3

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jmh&pr=154&range=01
 - incr: https://webrevs.openjdk.org/?repo=jmh&pr=154&range=00-01

  Stats: 48 lines in 38 files changed: 0 ins; 0 del; 48 mod
  Patch: https://git.openjdk.org/jmh/pull/154.diff
  Fetch: git fetch https://git.openjdk.org/jmh.git pull/154/head:pull/154

PR: https://git.openjdk.org/jmh/pull/154