[jdk17u-dev] RFR: 8315876: Open source several Swing CSS related tests

[Goetz Lindenmaier]

I backport this for parity with 17.0.16-oracle.

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Commit messages:
 - Backport 833a82872c0b2517c7f4ae5d512cff3a428a071c

Changes: https://git.openjdk.org/jdk17u-dev/pull/3332/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=3332&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8315876
  Stats: 443 lines in 5 files changed: 443 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/3332.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/3332/head:pull/3332

PR: https://git.openjdk.org/jdk17u-dev/pull/3332