Feature Request: Command for generation of .vscode/tasks.json and .vscode/launch.json

Hello.
The zig binary currently provides the init command which will initialize a new zig project in a directory populating with some commented files. I would like to request a feature in vscode-zig where a command would be available that generates .vscode/tasks.jsonand .vscode/launch.json if they don't already exist. This feature would be useful since, as far as I understand, these files currently have to be manually created, which isn't straightforward, particularly for debugging tests in zig or even basic debugging.

This incorporates: #30