RFR: 8341111: open source several AWT tests including menu shortcut tests

[Phil Race]

Open source several AWT tests, mostly related to menu short cuts.

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Commit messages:
 - 8341111

Changes: https://git.openjdk.org/jdk/pull/21291/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=21291&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8341111
  Stats: 750 lines in 6 files changed: 750 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/21291.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/21291/head:pull/21291

PR: https://git.openjdk.org/jdk/pull/21291