[jdk21u-dev] RFR: 8335912: Add an operation mode to the jar command when extracting to not overwriting existing files

[Alexey Bakhtin]

Clean backport of jar tool enhancement from JDK23

JTREG tests passed

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Commit messages:
 - Backport 158b93d19a518d2b9d3d185e2d4c4dbff9c82aab

Changes: https://git.openjdk.org/jdk21u-dev/pull/1177/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1177&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8335912
  Stats: 528 lines in 5 files changed: 526 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/1177.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/1177/head:pull/1177

PR: https://git.openjdk.org/jdk21u-dev/pull/1177