Upgrade Little Color Management System to latest version (2.20.0). Client testing in CI is green and no issues seen while running J2DDemo.
Please refer to comment in [JDK-8396577](https://bugs.openjdk.org/browse/JDK-8396577) on why make file changes were made. --------- - [x] I confirm that I make this contribution in accordance with the [OpenJDK Interim AI Policy](https://openjdk.org/legal/ai). ------------- Commit messages: - include wchar.h in make file - License update - Buildable fix Changes: https://git.openjdk.org/jdk/pull/33879/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=33879&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8396577 Stats: 443 lines in 21 files changed: 365 ins; 10 del; 68 mod Patch: https://git.openjdk.org/jdk/pull/33879.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/33879/head:pull/33879 PR: https://git.openjdk.org/jdk/pull/33879
