[jfx14] RFR: 8249799: Create release notes for JavaFX 14.0.2.1

[Johan Vos]

Add release notes for 14.0.2.1
Fix for JDK-8249799

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Commit messages:
 - Add release notes for 14.0.2.1

Changes: https://git.openjdk.java.net/jfx/pull/269/files
 Webrev: https://webrevs.openjdk.java.net/jfx/269/webrev.00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8249799
  Stats: 29 lines in 1 file changed: 29 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jfx/pull/269.diff
  Fetch: git fetch https://git.openjdk.java.net/jfx pull/269/head:pull/269

PR: https://git.openjdk.java.net/jfx/pull/269