RFR: 8254177: (tz) Upgrade time-zone data to tzdata2020b

[Kiran Sidhartha Ravikumar]

Hi Guys,

Please review the patch for tzdata2020b integration into JDK.

Release details can be found here:

https://mm.icann.org/pipermail/tz-announce/2020-October/000059.html

Bug: https://bugs.openjdk.java.net/browse/JDK-8254177

I had the pacificnew, systemv files removed from JDK repo and so TimeZoneName classes, make file and few test files
need to be updated to incorporate the change.

The patch has passed all the related testing including JCK.

Thanks,
Kiran

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Commit messages:
 - Merge remote-tracking branch 'origin/master' into JDK-8254177
 - 8254177: Resolving whitespaces in TestZoneInfo310.java
 - 8254177: (tz) Upgrade time-zone data to tzdata2020b

Changes: https://git.openjdk.java.net/jdk/pull/602/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=602&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8254177
  Stats: 480 lines in 27 files changed: 138 ins; 133 del; 209 mod
  Patch: https://git.openjdk.java.net/jdk/pull/602.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/602/head:pull/602

PR: https://git.openjdk.java.net/jdk/pull/602