RFR: 8313306: More sensible reservation logging [v2]

[Sonia Zaldana Calles]

> This PR implements more specialized logs for virtual memory APIs in the “os” namespace. It uses “os” and “map” as log tags using unified JVM logging as introduced in JEP 158 (https://openjdk.org/jeps/158). 
> 
> As far as testing is concerned, I have added a regression test to verify the logging is working accordingly.

Sonia Zaldana Calles has updated the pull request incrementally with three additional commits since the last revision:

 - Implementation of high level debug logging and low level trace logging
 - Implementation of high level debug logging
 - Feedback - deleting oracle copyright and fixing INTPTR formatting

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Changes:
  - all: https://git.openjdk.org/jdk/pull/17356/files
  - new: https://git.openjdk.org/jdk/pull/17356/files/f204bd60..e4f287f6

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=17356&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=17356&range=00-01

  Stats: 231 lines in 7 files changed: 160 ins; 23 del; 48 mod
  Patch: https://git.openjdk.org/jdk/pull/17356.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/17356/head:pull/17356

PR: https://git.openjdk.org/jdk/pull/17356