RFR: 8165943: LineBreakMeasurer does not measure correctly if TextAttribute.TRACKING is set. [v2]

[Olga Mikhaltsova]

> This is a fix for LineBreakMeasurer. It takes into account the TextAttribute.TRACKING value (not eq 0) while calculating the line breaks.
> 
> Tested on Linux x64, Windows x64, macOS x64 with the reproducer (LineBreakSample.java) attached to JDK-8165943 and the following group of tests:
> `$JTREG_HOME/bin/jtreg -jdk:$BUILD_HOME ./test/jdk/java/awt/font`

Olga Mikhaltsova has updated the pull request incrementally with two additional commits since the last revision:

 - Fix tracking for CJK, Arabic and Hebrew
 - Manual test

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/10289/files
  - new: https://git.openjdk.org/jdk/pull/10289/files/3564751d..1818c7d5

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=10289&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=10289&range=00-01

  Stats: 180 lines in 2 files changed: 175 ins; 3 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/10289.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/10289/head:pull/10289

PR: https://git.openjdk.org/jdk/pull/10289