RFR: 8345353: Test for JDK-8344800 W3C DTDs and XSDs in the built-in Catalog

[Joe Wang]

Add test for JDK-8344800 W3C DTDs and XSDs in the built-in Catalog

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

Commit messages:
 - 8345353: Test for JDK-8344800 W3C DTDs and XSDs in the built-in Catalog

Changes: https://git.openjdk.org/jdk/pull/22506/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=22506&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8345353
  Stats: 419 lines in 11 files changed: 419 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/22506.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/22506/head:pull/22506

PR: https://git.openjdk.org/jdk/pull/22506