RFR: 8202: JMC 9 release notes

[Marcus Hirt]

First draft! Please let me know what I missed. :)

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Commit messages:
 - Adding images and various fixes
 - Some more text
 - Removing wrongly located file
 - 8202: JMC 9 Release Notes tmp

Changes: https://git.openjdk.org/jmc/pull/555/files
  Webrev: https://webrevs.openjdk.org/?repo=jmc&pr=555&range=00
  Issue: https://bugs.openjdk.org/browse/JMC-8202
  Stats: 263 lines in 37 files changed: 261 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jmc/pull/555.diff
  Fetch: git fetch https://git.openjdk.org/jmc.git pull/555/head:pull/555

PR: https://git.openjdk.org/jmc/pull/555