RFR: 8092102: Labeled: truncated property [v10]

[Andy Goryachev]

> Adds **Labeled.textTruncated** property which indicates when the text is visually truncated (and the ellipsis string is inserted) in order to fit the available width.
> 
> The new property reacts to changes in the following properties:
> - ellipsisString
> - font
> - height
> - text
> - width
> - wrapText
> 
> I don't think it's worth creating a headful test (headless won't work) due to relative simplicity of the code.
> 
> **Alternative**
> 
> The desired functionality can be just as easily achieved on an application level, by adding a similar property to a subclass.  What is the benefit of adding this functionality to the core?
> 
> UPDATE 2024/03/07: turns out Labeled in a TableView (in a TreeTableView as well) lives by different rules (TableCellSkinBase:152, TreeTableCellSkin:126).  The consequence of this is that the new functionality **cannot** be fully implemented with the public APIs alone.
> 
> **See Also**
> 
> * [JDK-8327483](https://bugs.openjdk.org/browse/JDK-8327483) TreeView: Allow for tooltip when cell text is truncated
> * [JDK-8205211](https://bugs.openjdk.org/browse/JDK-8205211) Ability to show Tooltip only when text is shown with ellipsis (...)

Andy Goryachev has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 17 commits:

 - csr
 - Merge branch 'master' into 8092102.truncated
 - missing )
 - review comments
 - Merge branch 'master' into 8092102.truncated
 - add exports
 - added unit tests
 - Merge remote-tracking branch 'origin/master' into 8092102.truncated
 - test
 - Merge remote-tracking branch 'origin/master' into 8092102.truncated
 - ... and 7 more: https://git.openjdk.org/jfx/compare/aa9907a5...062d47ac

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Changes: https://git.openjdk.org/jfx/pull/1389/files
  Webrev: https://webrevs.openjdk.org/?repo=jfx&pr=1389&range=09
  Stats: 309 lines in 8 files changed: 279 ins; 19 del; 11 mod
  Patch: https://git.openjdk.org/jfx/pull/1389.diff
  Fetch: git fetch https://git.openjdk.org/jfx.git pull/1389/head:pull/1389

PR: https://git.openjdk.org/jfx/pull/1389