Rebuild our Dockerfile with support for multiple JDK versions. Use
multiple stages in the Jenkinsfile instead of yetus's multijdk because
of YETUS-953. Run those multiple stages in parallel to speed up
results.
Note that multiple stages means multiple Yetus invocations means
multiple comments on the PreCommit. This should become more obvious to
users once we can make use of GitHub Checks API, HBASE-23902.
closes#1183
Signed-off-by: Sean Busbey <busbey@apache.org>