RFR: 8328401: Convert java/awt/Frame/InitialMaximizedTest/InitialMaximizedTest.html applet test to automated

[Alexander Zvegintsev]

The test converted to automated, CI and manual testing looks good on all platforms.

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Commit messages:
 - 8328401: Convert java/awt/Frame/InitialMaximizedTest/InitialMaximizedTest.html applet test to automated

Changes: https://git.openjdk.org/jdk/pull/18367/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=18367&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8328401
  Stats: 244 lines in 2 files changed: 18 ins; 176 del; 50 mod
  Patch: https://git.openjdk.org/jdk/pull/18367.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/18367/head:pull/18367

PR: https://git.openjdk.org/jdk/pull/18367