Add `vscode-client` highlighting based on `tree-sitter-bash`

I'd appreciate if something like git branch --delete patch-1 was highlighted appropriately in VSC. The --delete token would be highlighted as a parameter. The git token would be highlighted as a function.

Sample file: https://raw.githubusercontent.com/xtnm/AU-AD/80e8ac1/AE-go_GameServer/check_xml.sh

There seems to be some strange bug in the VSC extension itself that's preventing this highlight.

I'll open an issue at their repository instead.

It's out of VSC's scope. The problem is that this extension doesn't contribute any highlighting.

@mads-hartmann @skovhus could this extension contribute the highlighting tokens defined in:

https://github.com/atom/language-shellscript/blob/685a8b1/grammars/tree-sitter-bash.cson#L75-L144

The scopes that are highlighted exclusively by tree-sitter-bash:

scopes:
  'string > command_substitution': 'embedded.source'
  'command_name': 'entity.name.function'
  'file_descriptor': 'constant.numeric'
  'test_operator': 'entity.other.attribute-name'
  'word': [{match: '^-', scopes: 'entity.other.attribute-name'}]
  'special_variable_name': 'variable.other.member'
  'variable_name': 'variable.other.member'

[mads-hartmann]

@sndst00m I believe that we'd need to implement semantic highlighting (see guide) to achieve what you want. I can't personally dedicate the time to implement this at the moment but I'm happy to review PRs ☺️