VSCode - Syzlang syntax highlighting

This extension provides syntax highlighting for syzkaller syscall descriptions in VSCode (.txt extensions).

By default, it will match any file whose path matches **/sys/*/*.txt but you can match other files by adding file associations to your settings.json, e.g:

"files.associations": {
  "*.txt": "syzlang"
},

Note that this currently does not highlight "syzprog" files (.syz extensions) nor *.txt.const nor *.txt.warn.