[jdk11u-dev] RFR: 8308592: Framework for CA interoperability testing

[Christoph Langer]

Backport of the new Framework for CA interoperability testing to have the same code in all release codelines.

-------------

Commit messages:
 - Backport cb535e2d52221bfc23e4c26a730399bceb573547

Changes: https://git.openjdk.org/jdk11u-dev/pull/2168/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=2168&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8308592
  Stats: 6517 lines in 18 files changed: 1010 ins; 5507 del; 0 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/2168.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev.git pull/2168/head:pull/2168

PR: https://git.openjdk.org/jdk11u-dev/pull/2168