<i18n dev> RFR: JDK-8319569: Several java/util tests should be updated to accept VM flags.

[Justin Lu]

Please review this PR which allows these _j.util_ tests to launch new JVM processes with VM flags,

This is primarily done using by switching to `ProcessTools::createTestJavaProcessBuilder`.

_PropertiesTest.sh_ was updated with `@requires vm.flagless`.

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Commit messages:
 - init

Changes: https://git.openjdk.org/jdk/pull/16705/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=16705&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8319569
  Stats: 183 lines in 12 files changed: 25 ins; 41 del; 117 mod
  Patch: https://git.openjdk.org/jdk/pull/16705.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/16705/head:pull/16705

PR: https://git.openjdk.org/jdk/pull/16705