RFR: 8360136: RFE: Add TextAttributes for OpenType font figure style features [v2]

[Valery Semenchuk]

> Introducing to API constants, and implementation for controlling Figure Styles
> 
> Target font: *Inter*
> 
> Example screenshot 
> 
> ![image](https://github.com/user-attachments/assets/e19af8ad-9809-4a0a-8a30-60921e490bd4)

Valery Semenchuk has refreshed the contents of this pull request, and previous commits have been removed. The incremental views will show differences compared to the previous content of the PR. The pull request contains one new commit since the last revision:

  8360136: introducing TextAttribute#PROPORTIONAL_FIGURES and TextAttribute#TABULAR_FIGURES for controlling Font figure styles

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Changes:
  - all: https://git.openjdk.org/jdk/pull/26144/files
  - new: https://git.openjdk.org/jdk/pull/26144/files/a3b6912e..0bb773d0

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=26144&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=26144&range=00-01

  Stats: 5 lines in 1 file changed: 2 ins; 2 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/26144.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/26144/head:pull/26144

PR: https://git.openjdk.org/jdk/pull/26144