RFR: 8252844: Update check configuration to Skara format

[Robin Westberg]

Now that the JDK main-line repository is using the Skara tooling, the jcheck configuration file should be updated to
the new format.

Best regards,
Robin

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Commit messages:
 - Initial update

Changes: https://git.openjdk.java.net/jdk/pull/39/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=39&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8252844
  Stats: 29 lines in 1 file changed: 28 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk/pull/39.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/39/head:pull/39

PR: https://git.openjdk.java.net/jdk/pull/39