RFR: JDK-8340555 : Open source DnD tests - Set4

[Harshitha Onkar]

Following tests are added as part of this PR:

1. /java/awt/dnd/DnDHTMLToOutlookTest/DnDHTMLToOutlookTest.java - **Manual PassFailJFrame (PFJ) test**, problemlisted on all platforms.

2. java/awt/dnd/DragSourceMotionListenerTest.java -  **Automated test**, problemlisted on windows

3. /java/awt/dnd/DragToAnotherScreenTest.java - **Manual PFJ test**

4. /java/awt/dnd/RejectDragTest.java - **Automated test**, problemlisted on macOS

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Commit messages:
 - open problemlist updated
 - open-sourced DnD tests

Changes: https://git.openjdk.org/jdk/pull/21213/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=21213&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8340555
  Stats: 880 lines in 7 files changed: 880 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/21213.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/21213/head:pull/21213

PR: https://git.openjdk.org/jdk/pull/21213