feat: create TSConfig in CLI

[JoshuaKGoldberg]

PR Checklist

• Addresses an existing issue: fixes Create a tsconfig if it doesn't yet exist #1003
• That issue was marked as status: accepting prs

Overview

The CLI now includes an option for I don't have one yet in the Where is your tsconfig.json? question. Under that option, it'll ask a few questions about compiler options.

project settings afterwards also now remember whether the project was created by this process, so after you select an include path, it'll add an include to that tsconfig.json.

✔ What are you trying to accomplish? · Convert my JavaScript files to TypeScript
✔ Where is your tsconfig.json? · I don't have one yet
✔ Should TypeScript output .js files from .ts sources? · yes
✔ Does your code run in browser? · yes
✔ Does your project use JSX? · yes
✔ What minimum runtime does your code run on? · es2020
✔ Would you like to enable TypeScript's strict compiler options? (recommended) · yes