RFR: 8317836: FX nodes embedded in JFXPanel need to track component orientation [v3]

[Prasanta Sadhukhan]

> FX Nodes embedded in a Swing JFXPanel does not track the component orientation and FX nodes remain unaffected when component orientation changes.
> Fix made sure JavaFX scene embedded in a JFXPanel should inherit the value from the JFXPanel.

Prasanta Sadhukhan has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains three additional commits since the last revision:

 - Merge branch 'master' of https://github.com/openjdk/jfx into JDK-8317836
 - Optimization
 - 8317836: FX nodes embedded in JFXPanel need to track component orientation

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Changes:
  - all: https://git.openjdk.org/jfx/pull/1271/files
  - new: https://git.openjdk.org/jfx/pull/1271/files/b3097c1b..d5a395c7

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jfx&pr=1271&range=02
 - incr: https://webrevs.openjdk.org/?repo=jfx&pr=1271&range=01-02

  Stats: 4666 lines in 104 files changed: 4095 ins; 364 del; 207 mod
  Patch: https://git.openjdk.org/jfx/pull/1271.diff
  Fetch: git fetch https://git.openjdk.org/jfx.git pull/1271/head:pull/1271

PR: https://git.openjdk.org/jfx/pull/1271