Convert the utils/tty RBI generator to a Tapioca compiler

[issyl0]

• Have you followed the guidelines in our Contributing document?
• Have you checked to ensure there aren't other open Pull Requests for the same change?
• Have you added an explanation of what your changes do and why you'd like us to include them?
• Have you written new tests for your changes? Here's an example.
• Have you successfully run brew style with your changes locally?
• Have you successfully run brew typecheck with your changes locally?
• Have you successfully run brew tests with your changes locally?

---

• The preferred way of doing RBI generation is via Tapioca. So I am trying to stop being intimidated by it, by learning how it works.
• This is very WIP still, currently failing with the following message because the module name is missing in the generated RBI file.

There are parse errors in the generated RBI files.

Errors:
  sorbet/rbi/dsl/tty.rbi:8: unexpected token tNL (2001)
  sorbet/rbi/dsl/tty.rbi:64: unexpected token "end" (2001)

[issyl0]

/cc @dduugg since you offered 👀 on unsticking me!

[dduugg]

@issyl0 I pushed a teensy change, lmk if that unblocks you.

[issyl0]

Yes, that works (and I understand what I was doing wrong)! Thank you, @dduugg! ⭐

[issyl0]

I finally got back to this (sorry for the delay) and Sorbet now passes. 🎉

[dduugg]

Looking very nice! I left a few suggestions, though I know a lot of the logic is copy pasta'd from the previous version.

[issyl0]

Thanks @dduugg! Changes applied since they all made sense, a lot of it was copypasta from the previous version where I was trying to cover all bases that it turns out we didn't need to (like the boolean types, and some methods being dynamic and some not).

[dduugg]

Looks great! So tidy!