Move and Rename custom propType definitions in ColorPropTypes (#21371)

Summary:
related #21342

TODO
* move ColorPropType.js
* fix flow error

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

All flow checks pass.

[GENERAL] [ENHANCEMENT] [DeprecatedColorPropType.js] - Created.
Pull Request resolved: https://github.com/facebook/react-native/pull/21371

Reviewed By: RSNara

Differential Revision: D10087818

Pulled By: TheSavior

fbshipit-source-id: 48088b441699886eef1fff3aafc2ca6015455006

Libraries/Components/ToolbarAndroid/ToolbarAndroid.android.js

@@ -9,7 +9,7 @@
 
 'use strict';
 
-const ColorPropType = require('ColorPropType');
+const DeprecatedColorPropType = require('DeprecatedColorPropType');
 const DeprecatedViewPropTypes = require('DeprecatedViewPropTypes');
 const Image = require('Image');
 const NativeMethodsMixin = require('NativeMethodsMixin');
@@ -118,7 +118,7 @@ const ToolbarAndroid = createReactClass({
     /**
      * Sets the toolbar subtitle color.
      */
-    subtitleColor: ColorPropType,
+    subtitleColor: DeprecatedColorPropType,
     /**
      * Sets the toolbar title.
      */
@@ -126,7 +126,7 @@ const ToolbarAndroid = createReactClass({
     /**
      * Sets the toolbar title color.
      */
-    titleColor: ColorPropType,
+    titleColor: DeprecatedColorPropType,
     /**
      * Sets the content inset for the toolbar starting edge.
      *