RFR: 8306638: Open source some AWT tests related to datatransfer and Toolkit [v2]

[Damon Nguyen]

On Mon, 15 May 2023 06:26:02 GMT, Jayathirth D V <jdv at openjdk.org> wrote:

>> This PR open sources some tests related to AWT datatransfer and Toolkit.
>
> Jayathirth D V has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Update after review comments

Marked as reviewed by dnguyen (Committer).

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PR Review: https://git.openjdk.org/jdk/pull/13642#pullrequestreview-1427397951