RFR: 8299335: Monkey Tester Application

[Andy Goryachev]

Monkey Tester - a JavaFX application designed to support ad-hoc testing of JavaFX controls.

Feedback and suggestions are always welcome.

![screenshot](https://user-images.githubusercontent.com/107069028/232911797-3d02da68-ce11-419e-8f16-c2661b778f9c.png)

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Commit messages:
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 - build.xml
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 - moved from another repository

Changes: https://git.openjdk.org/jfx/pull/1097/files
 Webrev: https://webrevs.openjdk.org/?repo=jfx&pr=1097&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8299335
  Stats: 6999 lines in 50 files changed: 6999 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jfx/pull/1097.diff
  Fetch: git fetch https://git.openjdk.org/jfx.git pull/1097/head:pull/1097

PR: https://git.openjdk.org/jfx/pull/1097