[jdk11u-dev] RFR: 8253820: Save test images and dumps with timestamps from client sanity suite [v2]

[Andrew Lu]

> I backport this for parity with 11.0.23-oracle.

Andrew Lu has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains four additional commits since the last revision:

 - update
 - Merge branch 'master' into andrewLu_backport_8253820
   
   # Conflicts:
   #	test/jdk/sanity/client/SwingSet/src/ButtonDemoScreenshotTest.java
   #	test/jdk/sanity/client/SwingSet/src/EditorPaneDemoTest.java
   #	test/jdk/sanity/client/lib/Extensions/src/org/jemmy2ext/JemmyExt.java
 - Backport e32a4ea4efc284eb004201a6cb77eb0404460bfd
 - Backport ffc97ba585b3750a0fe0d29d39a1201d91954d0f

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

Changes:
  - all: https://git.openjdk.org/jdk11u-dev/pull/2404/files
  - new: https://git.openjdk.org/jdk11u-dev/pull/2404/files/cf91f443..49d1ce62

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=2404&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=2404&range=00-01

  Stats: 2563 lines in 101 files changed: 2122 ins; 213 del; 228 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/2404.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev.git pull/2404/head:pull/2404

PR: https://git.openjdk.org/jdk11u-dev/pull/2404