Implementing "loose matching" of space separators in both `java.time.format.DateTimeFormatter` and `java.text.DateFormat` on lenient parsing. This will effectively fix the NNBSP issues on parsing time with am/pm markers introduced with CLDR version 42 (https://inside.java/2023/03/28/quality-heads-up/). A draft CSR has also been drafted.
------------- Commit messages: - initial commit Changes: https://git.openjdk.org/jdk/pull/17678/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=17678&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8324665 Stats: 175 lines in 4 files changed: 169 ins; 0 del; 6 mod Patch: https://git.openjdk.org/jdk/pull/17678.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/17678/head:pull/17678 PR: https://git.openjdk.org/jdk/pull/17678
