Command for adding existing files to p5 workspace.

[HBuminY]

When working with projects that have many pages and scripts, its unnecessery to use "create p5 project" for each page. So a command for adding files to p5.vscode workspace from the directory could allow using autocomplate in these added files without creating extra library and conf. files each time.

[HBuminY]

I just realized putting the config file to top directory would simply allow this.