Summary: ported TenantDataIsolation to Dragonwell

Test Plan: jdk/test/multi-tenant

Reviewed-by: yuleil, superajun-wsj

Issue: https://github.com/alibaba/dragonwell8/issues/84

Summary: updated files with 2011, 2012 and 2013 years according to the file's last updated date
Reviewed-by: tbell, lancea, chegar

Reviewed-by: chegar, forax, alanb, mduigou

Reviewed-by: chegar, ksrini

Summary: Track intermediate states more precisely, according to spec.
Reviewed-by: twisti, forax

Summary: Implement ClassValue cooperatively with Class like ThreadLocal with Thread.
Reviewed-by: twisti, mduigou

Summary: API code changes and javadoc changes following JSR 292 Public Review comments, through PFD
Reviewed-by: never

Summary: package and class renaming only; delete unused methods and classes; add @since tags; no code changes
Reviewed-by: twisti

Summary: move everything into a single package; remove all multi-package machinery
Reviewed-by: twisti, forax

Summary: misc. EG changes and polishes (excluding 7013417)
Reviewed-by: twisti

Reviewed-by: twisti

Summary: Add ClassValue
Reviewed-by: twisti