RFR: 8333403: Write a test to check various components events are triggered properly

[Ravi Gupta]

This testcase checks for the following assertions for Component events:

1. When components are resized, moved, hidden and shown the respective events are triggered.
2. When the components are hidden/disabled also,the component events like resized/moved are triggered.
3. When a hidden component is hidden again, or a visible component is shown again, the events should not be fired.
4. When a window is minimized/restored then hidden and shown component events should be triggered.

Testing:
Tested using Mach5(20 times per platform) in macos,linux and windows and got all pass.

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Commit messages:
 - 8333403: Write a test to check various components events are triggered properly

Changes: https://git.openjdk.org/jdk/pull/19521/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=19521&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8333403
  Stats: 371 lines in 1 file changed: 371 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/19521.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/19521/head:pull/19521

PR: https://git.openjdk.org/jdk/pull/19521