RFR: 7903416: jcstress: Handle NUMA topologies better

[Aleksey Shipilev]

See description in the issue.

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

Commit messages:
 - Properly treating package or NUMA node precedence
 - Work

Changes: https://git.openjdk.org/jcstress/pull/128/files
 Webrev: https://webrevs.openjdk.org/?repo=jcstress&pr=128&range=00
  Issue: https://bugs.openjdk.org/browse/CODETOOLS-7903416
  Stats: 6862 lines in 19 files changed: 2742 ins; 4 del; 4116 mod
  Patch: https://git.openjdk.org/jcstress/pull/128.diff
  Fetch: git fetch https://git.openjdk.org/jcstress pull/128/head:pull/128

PR: https://git.openjdk.org/jcstress/pull/128