RFR: 7928: Merge master into jmc8 in preparation for the 8.3 release

[Marcus Hirt]

Prepping for release.

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Commit messages:
 - Merge branch 'master' into jmc8 in preparation for the 8.3 release.
 - 7922: Issue using attribute selections in the stack trace view
 - 7923: Cleanup warnings in core
 - 7921: Create 8.3 release notes
 - 7350: [Accessibility, JAWS] [Misc] Deadlinks in Help Page
 - 7855: JFR Writer incorrectly uses epoch nanoseconds as the start ticks
 - 7902: UseCompressedOopsRule has flipped comparison
 - 7910: Fix spotless finding after JMC-7903
 - 7903: FastAccessNumberMap is slow for sparse values
 - 7813: Unable to open Help page in macOS M1 when JMC started with JDK11
 - ... and 39 more: https://git.openjdk.org/jmc/compare/ed260098...cb24f0a8

Changes: https://git.openjdk.org/jmc/pull/440/files
 Webrev: https://webrevs.openjdk.org/?repo=jmc&pr=440&range=00
  Issue: https://bugs.openjdk.org/browse/JMC-7928
  Stats: 12995 lines in 601 files changed: 10235 ins; 1317 del; 1443 mod
  Patch: https://git.openjdk.org/jmc/pull/440.diff
  Fetch: git fetch https://git.openjdk.org/jmc pull/440/head:pull/440

PR: https://git.openjdk.org/jmc/pull/440