feat: Export getDevServer function as public API

packages/react-native/Libraries/Core/Devtools/getDevServer.js

@@ -14,7 +14,7 @@ let _cachedDevServerURL: ?string;
 let _cachedFullBundleURL: ?string;
 const FALLBACK = 'http://localhost:8081/';
 
-type DevServerInfo = {
+export type DevServerInfo = {
   url: string,
   fullBundleUrl: ?string,
   bundleLoadedFromServer: boolean,

packages/react-native/index.js

@@ -223,6 +223,9 @@ module.exports = {
   get findNodeHandle() {
     return require('./Libraries/ReactNative/RendererProxy').findNodeHandle;
   },
+  get getDevServer() {
+    return require('./Libraries/Core/Devtools/getDevServer').default;
+  },
   get I18nManager() {
     return require('./Libraries/ReactNative/I18nManager').default;
   },

packages/react-native/index.js.flow

@@ -275,6 +275,9 @@ export {default as Easing} from './Libraries/Animated/Easing';
 
 export {findNodeHandle} from './Libraries/ReactNative/RendererProxy';
 
+export type {DevServerInfo} from './Libraries/Core/Devtools/getDevServer';
+export {default as getDevServer} from './Libraries/Core/Devtools/getDevServer';
+
 export {default as I18nManager} from './Libraries/ReactNative/I18nManager';
 
 export type {