RFR: 8054: Support the new JPLIS agent events

[Marcus Hirt]

Simple rules + page. Also some minor fixes.

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Commit messages:
 - More copyright fun
 - Spotless
 - Copyrights
 - Adding page
 - Minor improvements
 - Improvements
 - Registering rules
 - Making spotless happy
 - Adding rule for dynamically loaded agents
 - 8054: Support the new JPLIS agent event - first rule

Changes: https://git.openjdk.org/jmc/pull/543/files
 Webrev: https://webrevs.openjdk.org/?repo=jmc&pr=543&range=00
  Issue: https://bugs.openjdk.org/browse/JMC-8054
  Stats: 3006 lines in 30 files changed: 1836 ins; 432 del; 738 mod
  Patch: https://git.openjdk.org/jmc/pull/543.diff
  Fetch: git fetch https://git.openjdk.org/jmc.git pull/543/head:pull/543

PR: https://git.openjdk.org/jmc/pull/543