[jfx21u] RFR: 8323221: Create release notes for JavaFX 21.0.2

[Kevin Rushforth]

Release notes for JavaFX 21.0.2.

Notes to reviewers:

I used the following filter to pick the issues:

https://bugs.openjdk.org/issues/?filter=45268

The original filter, with the backport IDs, is here:

https://bugs.openjdk.org/issues/?filter=45267

As usual, I excluded test bugs, cleanup bugs, etc.

NOTE: Once the CPU release ships on 2023-01-16 (tomorrow), I will add any security bugs and make this PR `rfr`.

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Commit messages:
 - add CPU content
 - 8323221: Create release notes for JavaFX 21.0.2

Changes: https://git.openjdk.org/jfx21u/pull/39/files
 Webrev: https://webrevs.openjdk.org/?repo=jfx21u&pr=39&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8323221
  Stats: 34 lines in 1 file changed: 34 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jfx21u/pull/39.diff
  Fetch: git fetch https://git.openjdk.org/jfx21u.git pull/39/head:pull/39

PR: https://git.openjdk.org/jfx21u/pull/39