[foreign-jextract] RFR: 8268183: tools/launcher/VersionCheck.java fails for jextract

[Athijegannathan Sundararajan]

adding --version option. filtering warning line from -J-version

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Commit messages:
 - 8268183: tools/launcher/VersionCheck.java fails for jextract

Changes: https://git.openjdk.java.net/panama-foreign/pull/548/files
 Webrev: https://webrevs.openjdk.java.net/?repo=panama-foreign&pr=548&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8268183
  Stats: 21 lines in 4 files changed: 21 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/panama-foreign/pull/548.diff
  Fetch: git fetch https://git.openjdk.java.net/panama-foreign pull/548/head:pull/548

PR: https://git.openjdk.java.net/panama-foreign/pull/548