RFR: 8331765: Websocket callbacks are not executed after WebKit 617.1 update

[Jay Bhaskar]

Issue: The Websocket Channel is broken 
Solution: The socket Provider needs a web page pointer, since the web socket channel source code is moved to WebkitLegacy in 617.1 for the web process model, it is invalid for JavaFx Webkit.

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Commit messages:
 - add pass and fail button
 - 8331765: Websocket callbacks are not executed after WebKit 617.1 update

Changes: https://git.openjdk.org/jfx/pull/1477/files
  Webrev: https://webrevs.openjdk.org/?repo=jfx&pr=1477&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8331765
  Stats: 526 lines in 16 files changed: 474 ins; 31 del; 21 mod
  Patch: https://git.openjdk.org/jfx/pull/1477.diff
  Fetch: git fetch https://git.openjdk.org/jfx.git pull/1477/head:pull/1477

PR: https://git.openjdk.org/jfx/pull/1477