Add a roadmap

[j-f1]

This adds a roadmap with a complete listing of TSLint core rules and their equivalents in the ESLint ecosystem.

Rendered Version 📄

[j-f1]

I cross-promoted Prettier in a few of the rule listings, but I’m willing to remove it if you don’t want it there.

[j-f1]

(Directing users to Prettier would save us from having to implement formatting rules for TS)

[armano2]

@j-f1 eslint-plugin-import is not supporting typescript equal assign import and export assign import

import foo = require('bar') 

but besides of that, nice work 👍

[j-f1]

import-js/eslint-plugin-import#1244 @armano2

[ljharb]

Even if prettier supports formatting, it would be ideal to support it in eslint directly.

[armano2]

@bradzacher is currently working on indent rule see #219

[armano2]

file-header:

• https://github.com/Stuk/eslint-plugin-header
• https://github.com/Sekhmet/eslint-plugin-file-header

[armano2]

i'm going to work on interface-over-type-literal #238

[bradzacher]

LGTM

[bradzacher]

It's great for us to cross promote other packages.
The more work we can reasonably offload to existing packages the better. Love the cross promotion of packages like import.

That being said, while I do love prettier [1], due to its low configurability I think we should be cautious about not implementing things here purely because it's in prettier. Though alerting people to it as an alternative to fill our holes is a great idea.

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[1] since starting at FB (where it's on by default for JS code), I've added prettier-eslint to all my personal projects. For my code I didn't quite like how prettier formatted the code, but when paired with eslint fixers it's perfect. It's literally changed my coding life.