feat: Adapt an inline-plugin for more cases

[retyui]

Summary

This v2 implementation that fixes the next missing cases of inline-plugin

1. Relative imports (work only for react-native package files)

// 1. source code
import Platform from '../../Utilities/Platform';
Platform.OS === 'ios';

// 2. after `@react-native/babel-preset` preset
var _Platform = _interopRequireDefault(require("../../Utilities/Platform"));
_Platform.default.OS === 'ios';

// 3. after  `inline-plugin`
"android" === 'ios';

2. Babel helpers for imports (import * as NAME from "<module>")

// 1. source code
import * as RN from 'react-native';
RN.Platform.OS === 'ios';

// 2. after `@react-native/babel-preset` preset
var RN = _interopRequireWildcard(require('react-native'));
RN.Platform.OS === 'ios';

// 3. after  `inline-plugin`
"android" === 'ios';

Other info:

• Plugin check if Platform was imported from allowed package
• I refactor a bit code structure to make more readable some important plugin parts
• Add comments to explain some checks
• Move duplicated checks to top level functions (see begin of: isPlatformNode, isPlatformSelectNode)
• Cover with tests app possible scenarios
  • relative imports inside src folder or react-native package
  • relative imports uses Platform from associated module
  • both Platform.OS and Platform.select should works in new cases

Changelog: [Fix] Adapt an inline-plugin for more cases to remove a dead-code from final bundle

Test plan

yarn jest packages/metro-transform-plugins/src/__tests__/inline-plugin-test.js