RFR: 8319147: Add regression test for JDK-8317836

[Andy Goryachev]

On Thu, 2 Nov 2023 06:04:23 GMT, Prasanta Sadhukhan <psadhukhan at openjdk.org> wrote:

> A manual regression test for JFXPanel orientation fix in [JDK-8317836](https://bugs.openjdk.org/browse/JDK-8317836) is added

looks good, works as expected with the latest master.

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Marked as reviewed by angorya (Reviewer).

PR Review: https://git.openjdk.org/jfx/pull/1276#pullrequestreview-1710581535