RFR: 8328482: Convert and Open source few manual applet test to main based [v11]

[Tejesh R]

> Convert and open source these manual applet test to main based:
> java/awt/Frame/MegaIconTest/MegaIconTest.html
> java/awt/Frame/FrameMaximizedTest/FrameMaximizedTest.html
> java/awt/Frame/FrameMinimizeTest/FrameMinimizeTest.html
> java/awt/Frame/SizeMinimizedTest/SizeMinimizedTest.html
> 
> Automated the test SizeMinimizedTest.java. Since the test is failing Linux arch (Maybe related to the bug - [JDK-8305915](https://bugs.openjdk.org/browse/JDK-8305915)), the test is problem listed for Linux arch until the issue is fixed/further investigation is done.

Tejesh R has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains 14 additional commits since the last revision:

 - Review comments updated - SizeMinimizedTest
 - Merge branch 'master' of https://git.openjdk.java.net/jdk into branch_8328482
 - Review comments updated - SizeMinimizedTest
 - Review comments updated - SizeMinimizedTest
 - Added opaque image
 - Reveiw updates
 - Reveiw updates
 - Reveiw updates and SizeMinimizedTest converted to auto test
 - fight.gif added
 - Images updated
 - ... and 4 more: https://git.openjdk.org/jdk/compare/67682972...373c16cd

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/18448/files
  - new: https://git.openjdk.org/jdk/pull/18448/files/30cd1c04..373c16cd

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=18448&range=10
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=18448&range=09-10

  Stats: 78677 lines in 2828 files changed: 17722 ins; 15691 del; 45264 mod
  Patch: https://git.openjdk.org/jdk/pull/18448.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/18448/head:pull/18448

PR: https://git.openjdk.org/jdk/pull/18448