RFR: 8293850: need a largest_committed metric for each category of NMT's output [v2]

[Afshin Zafari]

> The `peak` amount of allocation is kept for Virtual Memory allocations.
> Whenever `reserved` and `committed` amounts are printed, the `largest_committed` also is printed.
> 
> tiers 1-7 passed.

Afshin Zafari has updated the pull request incrementally with one additional commit since the last revision:

  typo fixed.

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/15305/files
  - new: https://git.openjdk.org/jdk/pull/15305/files/1fb0a284..29477bc0

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=15305&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=15305&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/15305.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/15305/head:pull/15305

PR: https://git.openjdk.org/jdk/pull/15305