RFR: JDK-8287011: Improve container information [v6]

[Matthias Baesken]

> The change adds some potentially interesting cgroup v1 and v2 metrics to hs_err / hs_info files.

Matthias Baesken has updated the pull request incrementally with one additional commit since the last revision:

  Add inclusion of ostream.hpp

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Changes:
  - all: https://git.openjdk.org/jdk/pull/8991/files
  - new: https://git.openjdk.org/jdk/pull/8991/files/77c52cdf..9f95a892

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=8991&range=05
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=8991&range=04-05

  Stats: 1 line in 1 file changed: 1 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/8991.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/8991/head:pull/8991

PR: https://git.openjdk.org/jdk/pull/8991