vscode highlighting for ulox

[stevehalliwell]

once we have our own extension, we can create the association and highlighting in vscode for our elements.

There exists an opensource lox vscode highlighter, potentially fork that and go from there. https://github.com/danman113/lox-language

[stevehalliwell]

Current keywords needed to change or add;

• nill becomes null
• print is no longer a keyword
• ? :
• test testcase
• mixin
• build
• countof