THis brings in element access in link validationCallback and CSI 3 J

Contains link fixes

This brings in new link handler code to support ctrl/cmd links

This brings in terminal link priority support

This brings in terminal link validation

Part of #21226

Fixes #21188

Fixes #21186
Fixes #21184
Fixes #21188
Fixes #21059

Fixes issue where whitespace would be eaten in terminal after a link.

See sourcelair/xterm.js#558

Fixes #20797

Fixes query string in http link matcher

Fixes #20777

Add a null check to linkify row

Fixes #20774

This brings in:

- eraseRight/Left null exception
- Animation frame idle performance
- Pull renderer out

Fixes Microsoft/vscode#19640
Part of Microsoft/vscode#12000
Fixes Microsoft/vscode#19651

Fixes #18833

Fixes #19074

Fixes #18985

Fixes #18952

This brings in support for cursor styles

Fixes #13625
Fixes #10163

This brings in:

- Parser refactor (performance)
- Remove comments
- Fix to resizing invisible terminals, fixes #18332
- Keep selection on modifier keyup

This should fix the last major issues with applications within WSL

Part of #13625

This brings in namely:

- cursorBlink and scrollback refresh immediately after setOption call

This is the first build to feature the upgrade to winpty@0.4.1 in addition to
the conversion to TypeScript and general code clean up. The most notable
change is that Git Bash no longer goes out of sync and likely a bunch of other
issues in #14613. Certain applications within WSL do not function correctly
with this build.

I tested this on Windows and Linux.

Part of #13625

Includes fixes for the terminal breaking when zooming VS Code.

Fixes #18415

Notable changes in:

- XON/XOFF support
- Renderer catch up
- Frame skipping during heavy output

This adds the fix for #18370 which was cherry picked to the Tyriar/xterm
vscode-release/1.9 branch (as it's in review).

Fixes #18370

This brings in disableStdio option (Part of #15583)

This brings in many performance improvements as well as true double width CJK chars.

Fixes #13625