Update Bracket Pair Colorizer to version 2

[faraz5040]

Bracket Pair Colorizer (coenraads.bracket-pair-colorizer) has been deprecated by original author and replaced by Bracket Pair Colorizer 2 (coenraads.bracket-pair-colorizer-2).

[SethFalco]

It's probably best to just remove it from the pack now.
The feature is being added to base Visual Studio Code, already available in Visual Studio Code Insiders.

Can be enabled by setting editor.bracketPairColorization.enabled to true.

• Include a bracket pair colorizing feature microsoft/vscode#96899
• Performant Bracket Pair Colorization microsoft/vscode#129231