Use codegen for Fantom native module

Summary:
Changelog: [internal]

This moves the native module definition for Fantom to the `react-native` package so we can migrate the module to use the codegen.

Also implements the migration.

Differential Revision: D67759729

packages/react-native-fantom/src/getFantomRenderedOutput.js

@@ -9,10 +9,10 @@
  * @oncall react_native
  */
 
-import NativeFantom from './specs/NativeFantom';
 // $FlowExpectedError[untyped-import]
 import micromatch from 'micromatch';
 import * as React from 'react';
+import NativeFantom from 'react-native/src/private/specs/modules/NativeFantom';
 
 export type RenderOutputConfig = {
   ...FantomRenderedOutputConfig,

packages/react-native-fantom/src/index.js

@@ -15,8 +15,8 @@ import type {
 import type {MixedElement} from 'react';
 
 import getFantomRenderedOutput from './getFantomRenderedOutput';
-import NativeFantom from './specs/NativeFantom';
 import ReactFabric from 'react-native/Libraries/Renderer/shims/ReactFabric';
+import NativeFantom from 'react-native/src/private/specs/modules/NativeFantom';
 
 let globalSurfaceIdCounter = 1;
 

packages/react-native-fantom/src/specs/NativeFantom.js → packages/react-native/src/private/specs/modules/NativeFantom.js

@@ -4,13 +4,13 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @flow strict-local
+ * @flow strict
  * @format
  */
 
-import type {TurboModule} from 'react-native/Libraries/TurboModule/RCTExport';
+import type {TurboModule} from '../../../../Libraries/TurboModule/RCTExport';
 
-import {TurboModuleRegistry} from 'react-native';
+import * as TurboModuleRegistry from '../../../../Libraries/TurboModule/TurboModuleRegistry';
 
 // match RenderFormatOptions.h
 export type RenderFormatOptions = {