[Review request] 8171983: Add javadoc comments to module-info.java for javafx.* modules

[Jonathan Giles]

Kevin,

Please review the webrev for adding module-level javadoc comments to all 
JavaFX modules defined in JDK 9:

https://bugs.openjdk.java.net/browse/JDK-8171983

http://cr.openjdk.java.net/~jgiles/8171983/index.html

Thanks,

-- Jonathan