Summary:
## Changelog
[General] [Added] - Add `types` folder to house TypeScript types.
Release TypesScript types with react-native and eventually deprecate [types/react-native](https://www.npmjs.com/package/types/react-native).
The current plan is to release types/react-native for 0.70 and 0.71 while also maintaining types here. This will result in some double maintenance until 0.72 but will give community time to move off of types/react-native.
After this lands, there have been changes on `main` of types that we need to update. Then, when we release 0.71 from DefinitelyTyped, we can simply copy over the `types` folder from this repo.
Pull Request resolved: https://github.com/facebook/react-native/pull/34614
Test Plan:
`yarn run test-typescript` for linting types
* Created a new project using the TS template and my local clone of `react-native` on this branch.
`npx react-native init MyTSApp --version <path-to-my-local-rn-repo> --template react-native-template-typescript`
* Updated the `package.json` to remove `types/react-native`
* Deleted my node_modules and re-ran yarn
* Opened MyTSApp in VSCode and verified the type suggestions appeared and cmd+click to defnitions took me to the node_module dependency `react-native/types`
## Danger is failing on this PR and it's expected
as it runs off the changes on `main`. [This is expected](https://docs.github.com/en/github-ae@latest/actions/using-workflows/events-that-trigger-workflows?fbclid=IwAR2_AE0Jwndt8Gu-iTQnxGxLJq7nakbi7sz8jwZ6U62JWLSdcZuvjcQ6WvE#pull_request_target). However testing it locally passes. Once merged, and these changes are on `main`, danger will pass again.
```
$ react-native/packages/react-native-bots
❯ yarn danger pr https://github.com/facebook/react-native/pull/34614
yarn run v1.22.19
$ ..react-native/node_modules/.bin/danger pr https://github.com/facebook/react-native/pull/34614
Starting Danger PR on facebook/react-native#34614
Danger: ✓ found only warnings, not failing the build
## Warnings
🔒 package.json - <i>Changes were made to package.json. This will require a manual import by a Facebook employee.</i>
✨ Done in 13.24s.
```
Reviewed By: mdvacca
Differential Revision: D39479137
Pulled By: lunaleaps
fbshipit-source-id: 1d506f812d566b783b6e79104cd6339b077a42a7
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