[crac] RFR: 8346766: [CRaC] tools/launcher/HelpFlagsTest.java and tools/launcher/VersionCheck.java tests fail on Windows

[Timofei Pushkin]

As a simple fix, CRaC's CREngine binaries are added as exceptions to the aforementioned tests.

In future the binaries can be made compliant with the tests (i.e. `-help`, `-version` and other required flags can be added).

-------------

Commit messages:
 - 8346766: [CRaC] tools/launcher/HelpFlagsTest.java and tools/launcher/VersionCheck.java tests fail on Windows

Changes: https://git.openjdk.org/crac/pull/167/files
  Webrev: https://webrevs.openjdk.org/?repo=crac&pr=167&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8346766
  Stats: 9 lines in 2 files changed: 9 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/crac/pull/167.diff
  Fetch: git fetch https://git.openjdk.org/crac.git pull/167/head:pull/167

PR: https://git.openjdk.org/crac/pull/167