RFR: 8340605: Open source several AWT PopupMenu tests

[Abhishek Kumar]

Several AWT PopupMEnu related tests are converted from applet to manual and moved to open.

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Commit messages:
 - Test moved to open

Changes: https://git.openjdk.org/jdk/pull/21151/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=21151&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8340605
  Stats: 432 lines in 5 files changed: 432 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/21151.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/21151/head:pull/21151

PR: https://git.openjdk.org/jdk/pull/21151