[Toolchain] Update Relay to support new TypeScript compiler option

[damassi]

Based on work completed in Emission:

• Uses our custom Node ID patch
• Uses our language plugin patch
• Uses the TS language plugin @alloy been working on with @kastermester 🙌
• Replaces awesome-typescript-loader with ts-loader. Comes with a nice perf boost!

⚠️ If you already had Reaction checked out before, be sure to delete / rebuild all previous artifacts:

$ find . -name __generated__ | xargs rm -rf
$ yarn relay

Afterwards you can use the regular script again:

$ yarn start

[damassi]

just alpha and cleanup

[damassi]

I figured it would be clearest to explicitly resolve all of our patches here similar to the most recent example, and then update / remove when ready.

[alloy]

Nice 👌 You may wanna update to the latest code, as per this example artsy/emission#985, but otherwise I’m good with this as-is 👍

[alloy]

Btw, will you do another PR where the emitted types will be used?

[damassi]

@alloy - you mean in terms of interface Props { artist: TypescriptEmittedArtistProps }? If so then yes, that should be in another PR. I'll add that to my sprint backlog.

[alloy]

Yup, that part. Sounds good 👍

[alloy]

Merge when 💚 !