Bump React Native Codegen to 0.70.0

Summary:
I'm updating the versioning schema of `react-native-codegen` to use minor instead of patch versions.

Historically we used to use a version as `0.0.15` and incrementally bump it.
Today, we had to do released a patched version of `react-native-codegen` for React Native 0.68.

Therefore, we're moving to use a versioning scheme as `0.<RN-VERSION>.x` which gives more flexibility and allows us to follow-up on specific version of the codegen for every RN version, should we need to.

`react-native-codegen` 0.70 is essentially a re-publishing of 0.0.16 from `main`

Changelog:
[General] [Changed] - Bump React Native Codegen to 0.70.0

Reviewed By: motiz88

Differential Revision: D36244307

fbshipit-source-id: 475615e5dbc4e6bc850f64110c060a1c87544292

packages/react-native-codegen/package.json

@@ -1,6 +1,6 @@
 {
   "name": "react-native-codegen",
-  "version": "0.0.16",
+  "version": "0.70.0",
   "description": "⚛️ Code generation tools for React Native",
   "homepage": "https://github.com/facebook/react-native/tree/HEAD/packages/react-native-codegen",
   "repository": {

repo-config/package.json

@@ -43,7 +43,7 @@
     "mkdirp": "^0.5.1",
     "prettier": "^2.4.1",
     "react": "17.0.2",
-    "react-native-codegen": "^0.0.16",
+    "react-native-codegen": "^0.70.0",
     "react-test-renderer": "17.0.2",
     "shelljs": "^0.8.5",
     "signedsource": "^1.0.0",