RFR: 8294535 : Add screen capture functionality to PassFailJFrame

[lawrence.andrews]

1) Used builder pattern 
2) Tested AWT tests and it passed

-------------

Commit messages:
 - minor changes
 - Used builder pattern for PassFailJFrame.java
 - Merge branch 'master' into PassFailJFrame_Screen_Shot
 - Fixed review comments
 - Added screen shot functionality to PassFailJFrame.java

Changes: https://git.openjdk.org/jdk/pull/14094/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=14094&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8294535
  Stats: 212 lines in 3 files changed: 205 ins; 0 del; 7 mod
  Patch: https://git.openjdk.org/jdk/pull/14094.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/14094/head:pull/14094

PR: https://git.openjdk.org/jdk/pull/14094