RFR: 8090456: Focus Management [v4]

[Andy Goryachev]

> Public APIs for focus traversal and the focus traversal policy:
> 
> https://github.com/andy-goryachev-oracle/Test/blob/main/doc/FocusTraversal/FocusTraversal.md
> 
> This work is loosely based on the patch
> https://cr.openjdk.org/~jgiles/8061673/

Andy Goryachev has updated the pull request incrementally with one additional commit since the last revision:

  whitespace

-------------

Changes:
  - all: https://git.openjdk.org/jfx/pull/1555/files
  - new: https://git.openjdk.org/jfx/pull/1555/files/12a54fee..02a8d261

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jfx&pr=1555&range=03
 - incr: https://webrevs.openjdk.org/?repo=jfx&pr=1555&range=02-03

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jfx/pull/1555.diff
  Fetch: git fetch https://git.openjdk.org/jfx.git pull/1555/head:pull/1555

PR: https://git.openjdk.org/jfx/pull/1555