Sus VSCode Test Provider

Experimental extension for showing tests in VSCode.

Debugging

• Check out the code.
• Run npm install to install dependencies.
• Open the code in an editor.
• Run the Run Extension target in the Debug View. This will:
  • Start a task npm: watch to compile the code.
  • Run the extension in a new code window.
• Open the sus repo in the new code window.
• Check the Tests sidebar icon.