RFR: 885: jbsupdater -pool record consumption modifications

[Erik Joelsson]

This patch changes how -pool records are consumed, to help differentiate between OpenJDK and OracleJDK update releases. OracleJDK update releases have moved to using fixVersions with an -oracle suffix. With this change, pool record consumption for such releases will also use an -oracle suffix. I opted for a very simple implementation, where any "-suffix" on a fixVersion is now required as suffix on a -pool version to be a match. I think this makes the most sense and keeps things simple going forward.

While in the area, I also removed logic for treating N-open fixVersions the same way as N-pool versions. I have no memory of seeing that behavior in action and I believe that implementation was based on a misunderstanding. I could be wrong however, so if anyone can think of a reason to keep that logic, please let me know.

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Commit messages:
 - SKARA-885

Changes: https://git.openjdk.java.net/skara/pull/1233/files
 Webrev: https://webrevs.openjdk.java.net/?repo=skara&pr=1233&range=00
  Issue: https://bugs.openjdk.java.net/browse/SKARA-885
  Stats: 21 lines in 4 files changed: 13 ins; 0 del; 8 mod
  Patch: https://git.openjdk.java.net/skara/pull/1233.diff
  Fetch: git fetch https://git.openjdk.java.net/skara pull/1233/head:pull/1233

PR: https://git.openjdk.java.net/skara/pull/1233