RFR: 8340367: Opensource few AWT image tests

[Prasanta Sadhukhan]

Opensource few image tests

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Commit messages:
 - jcheck
 - 8340367: Opensource few AWT image tests
 - 8340367: Opensource few AWT image tests
 - 8340367: Opensource few AWT image tests

Changes: https://git.openjdk.org/jdk/pull/21104/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=21104&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8340367
  Stats: 513 lines in 5 files changed: 513 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/21104.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/21104/head:pull/21104

PR: https://git.openjdk.org/jdk/pull/21104