Move and Rename propType definitions in ShadowPropTypesIOS (#21379)

Summary:
related #21342

move TransformPropTypes.js
fix flow error

- [x] yarn prettier
- [x] yarn flow-check-android
- [x] yarn flow-check-ios

All flow checks pass.

[GENERAL] [ENHANCEMENT] [DeprecatedShadowPropTypesIOS.js] - Created.
Pull Request resolved: https://github.com/facebook/react-native/pull/21379

Differential Revision: D10098750

Pulled By: TheSavior

fbshipit-source-id: f7f2e4bf7b837c00a14b1fbd930d1b29ffb63549

Libraries/Image/ImageStylePropTypes.js

@@ -13,12 +13,12 @@ const DeprecatedColorPropType = require('DeprecatedColorPropType');
 const ImageResizeMode = require('ImageResizeMode');
 const LayoutPropTypes = require('LayoutPropTypes');
 const ReactPropTypes = require('prop-types');
-const ShadowPropTypesIOS = require('ShadowPropTypesIOS');
+const DeprecatedShadowPropTypesIOS = require('DeprecatedShadowPropTypesIOS');
 const DeprecatedTransformPropTypes = require('DeprecatedTransformPropTypes');
 
 const ImageStylePropTypes = {
   ...LayoutPropTypes,
-  ...ShadowPropTypesIOS,
+  ...DeprecatedShadowPropTypesIOS,
   ...DeprecatedTransformPropTypes,
   resizeMode: ReactPropTypes.oneOf(Object.keys(ImageResizeMode)),
   backfaceVisibility: ReactPropTypes.oneOf(['visible', 'hidden']),