on macOS: App_Resources/ folder is not deleted in platforms/ when rename App_Resources folder or change it's location

[Natalia-Hristova]

Please, provide the details below:

Tell us about the problem

After build of the app App_Resources/ exists in src/main/assets/app but it shouldn't. Have in mind that this happens only on Mac. It's works as expected on Windows.

Which platform(s) does your issue occur on?

Android and iOS

Please provide the following version numbers that your issue occurs with:

• CLI: 4.0.0-2018-03-07-10905
• Runtime(s): tns-android 3.4.2 or current next
tns-ios 3.4.1 or current next

Please tell us how to recreate the issue in as much detail as possible.

1. Rename App_Resources/ and set up the path in nsconfig.json OR put App_Respurces/ in different location like app/res/App_Respurces/
2. Run tns build android or tns build ios
3. Check for the existence of the renamed App_Respurces/ in
   for Android: ../platforms/android/app/src/main/assets/app
   for iOS: ../platforms/ios/MyApp/app