[jdk21u-dev] RFR: 8341128: open source some 2d graphics tests

[Goetz Lindenmaier]

I backport this for parity with 21.0.8-oracle

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Commit messages:
 - Backport e89fd1d2ceff82952a4859c0febe902412fcf064

Changes: https://git.openjdk.org/jdk21u-dev/pull/1628/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1628&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8341128
  Stats: 563 lines in 7 files changed: 563 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/1628.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/1628/head:pull/1628

PR: https://git.openjdk.org/jdk21u-dev/pull/1628