Move source files of metro-react-native-babel-preset package to src folder

Reviewed By: mjesun

Differential Revision: D8781268

fbshipit-source-id: 64df12cc4ae5d551af509e5e6186f4420bc5b903

Author: rafeca

packages/metro-react-native-babel-preset/package.json

@@ -2,7 +2,7 @@
   "name": "metro-react-native-babel-preset",
   "version": "0.42.0",
   "description": "Babel preset for React Native applications",
-  "main": "index.js",
+  "main": "src/index.js",
   "repository": {
     "type": "git",
     "url": "git@github.com:facebook/metro.git"

…react-native-babel-preset/configs/hmr.js …t-native-babel-preset/src/configs/hmr.jspackages/metro-react-native-babel-preset/configs/hmr.js renamed to packages/metro-react-native-babel-preset/src/configs/hmr.js packages/metro-react-native-babel-preset/configs/hmr.js renamed to packages/metro-react-native-babel-preset/src/configs/hmr.js

@@ -16,7 +16,7 @@ const externalHelpersPlugin = require('babel-plugin-external-helpers');
 const fs = require('fs');
 const inlineRequiresPlugin = require('babel-preset-fbjs/plugins/inline-requires');
 const json5 = require('json5');
-const makeHMRConfig = require('metro-react-native-babel-preset/configs/hmr');
+const makeHMRConfig = require('metro-react-native-babel-preset/src/configs/hmr');
 const path = require('path');
 
 const {transformSync} = require('@babel/core');