RFR: 8319147: Add regression test for JDK-8317836 [v2]

[Prasanta Sadhukhan]

On Mon, 6 Nov 2023 06:06:35 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
>
> Prasanta Sadhukhan has updated the pull request incrementally with two additional commits since the last revision:
> 
>  - Formatting
>  - Modify window size

Thank you for the FX API docs link

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PR Comment: https://git.openjdk.org/jfx/pull/1276#issuecomment-1797651815