RFR: 7903706: Feature Tests - Adding five JavaTest GUI legacy automated test scripts

[gollayadav]

Adding below automated legacy JavaTest GUI feature Test Scripts to the Jemmy regression suite and tested locally on three platforms(Linux, Windows, Mac OS) and working fine. Also verified with JDK8 on macos.

1. TestTree1.java
2. TestTree2.java
3. TestTree3.java
4. TestTree4.java
5. TestTree5.java

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Commit messages:
 - 7903706: Feature Tests - Adding five JavaTest GUI legacy automated test scripts

Changes: https://git.openjdk.org/jtharness/pull/67/files
  Webrev: https://webrevs.openjdk.org/?repo=jtharness&pr=67&range=00
  Issue: https://bugs.openjdk.org/browse/CODETOOLS-7903706
  Stats: 442 lines in 5 files changed: 442 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jtharness/pull/67.diff
  Fetch: git fetch https://git.openjdk.org/jtharness.git pull/67/head:pull/67

PR: https://git.openjdk.org/jtharness/pull/67