[7u] RFR: 8254177: (tz) Upgrade time-zone data to tzdata2020b

[Dmitry Cherepanov]

Please review the backport for 8254177 to 7u.

Bug: https://bugs.openjdk.java.net/browse/JDK-8254177
8u commit: https://hg.openjdk.java.net/jdk8u/jdk8u/jdk/rev/93840580183a
Webrev: http://cr.openjdk.java.net/~dcherepanov/openjdk7u/8254177/webrev.v1/

The patch for 8u doesn't apply cleanly to 7u. The following modifications were done:

1) adjusted paths for tzdata files (make/data/tzdata -> make/sun/javazic/tzdata)

2) adjusted paths for resource files
     (src/share/classes/sun/util/resources/[de | es | fr | …] -> src/share/classes/sun/util/resources)

3) ignored changes in files:  src/aix/lib/tzmappings and test/sun/util/calendar/*

4) updated the list of tzdata files in make/sun/javazic/Makefile (excluded pacificnew/systemv)

Sanity checked that there's no references left in the code to the removed files pacificnew/systemv and the removed timezone US/Pacific-New.

Ran relevant regression tests, not issues found.

Thanks,

Dmitry

P.S. RFRs for updates to tzdata2020c/tzdata2020d will be submitted separately.