RFR: 8272779: Package docs for javafx.embed.swing are misleading [v3]

[Prasanta Sadhukhan]

> The API docs for the javafx.embed.swing package are misleading in that they only talk about the JFXPanel capability (embedding a JavaFX Scene in a Swing JComponent) and ignore the SwingNode functionality entirely. 
> Fix the package doc.

Prasanta Sadhukhan has updated the pull request incrementally with one additional commit since the last revision:

  Fix review comment

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Changes:
  - all: https://git.openjdk.java.net/jfx/pull/609/files
  - new: https://git.openjdk.java.net/jfx/pull/609/files/dd60daad..eecd971b

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jfx&pr=609&range=02
 - incr: https://webrevs.openjdk.java.net/?repo=jfx&pr=609&range=01-02

  Stats: 5 lines in 1 file changed: 0 ins; 1 del; 4 mod
  Patch: https://git.openjdk.java.net/jfx/pull/609.diff
  Fetch: git fetch https://git.openjdk.java.net/jfx pull/609/head:pull/609

PR: https://git.openjdk.java.net/jfx/pull/609