[jdk8u] RFR: 8028265: Add legacy tz tests to OpenJDK

[Andrew John Hughes]

On Fri, 16 Sep 2022 15:53:07 GMT, Andrew John Hughes <andrew at openjdk.org> wrote:

> This is a clean backport of JDK-8028265, other than moving the tests from `test/jdk` to `jdk/test`.
> 
> All tests pass with current 8u.  `AssureTzdataVersion` also successfully caught version mismatches between the local tree's 2022a and 2021e in an old build, and 2022c in my system build that already has updated system tzdata
> 
> Applying for this as a critical fix as it's a pre-requisite for [JDK-8292579](https://bugs.openjdk.org/browse/JDK-8292579), the update to 2022c

Tests look good (Windows failure is a download failure on release build only) and I see `jdk8u-critical-yes`

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PR: https://git.openjdk.org/jdk8u/pull/20