RFR: 8041488: Locale-Dependent List Patterns [v6]

[Naoto Sato]

> Introducing a new formatting class for locale-dependent list patterns. The class is to provide the functionality from the Unicode Consortium's LDML specification for [list patterns](https://www.unicode.org/reports/tr35/tr35-general.html#ListPatterns). For example, given a list of String as "Monday", "Wednesday", "Friday", its `format` method would produce "Monday, Wednesday, and Friday" in US English. A CSR has also been drafted, and its draft javadoc can be viewed here: https://cr.openjdk.org/~naoto/JDK-8041488-ListPatterns-PR/api.00/java.base/java/text/ListFormat.html

Naoto Sato has updated the pull request incrementally with one additional commit since the last revision:

  Reflects review comments

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Changes:
  - all: https://git.openjdk.org/jdk/pull/15130/files
  - new: https://git.openjdk.org/jdk/pull/15130/files/a98e1e1f..516c00c7

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=15130&range=05
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=15130&range=04-05

  Stats: 59 lines in 2 files changed: 40 ins; 1 del; 18 mod
  Patch: https://git.openjdk.org/jdk/pull/15130.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/15130/head:pull/15130

PR: https://git.openjdk.org/jdk/pull/15130