git: openjdk/jfx: jfx19: 8293615: Create release notes for JavaFX 19

[Kevin Rushforth]

Changeset: 0db91abc
Author:    Kevin Rushforth <kcr at openjdk.org>
Date:      2022-09-13 20:00:42 +0000
URL:       https://git.openjdk.org/jfx/commit/0db91abc0d97d45b05cc543bff024c9b36d53d11

8293615: Create release notes for JavaFX 19

Reviewed-by: angorya
Backport-of: 205b7211bde0e468e81a135fe37952b7f2b11d45

+ doc-files/release-notes-19.md