Not flattening scoped dependencies of project dependency

[TsvetanMilanov]

When the project has dependency A and A has scoped dependency B, tns prepare <platform> is not flattening B.

For example the nativescript-angular has dependency @angular/core and after tns prepare <platform> in the tns_modules folder there is no folder @angular with subfolder core.

[rosen-vladimirov]

The problem occurs when in your project you have dependency (for example "nativescript-angular") and it has scopede dependencies as its own dependencies (in it's package.json some dependencies are defined as @angular/<smth>). In order to make all dependencies usable in NativeScript project, CLI must flatten the dependencies and send them to correct folder in platforms directory. For example for Android this is platforms/android/src/main/assets/app/tns_modules/ - there you should find @angular directory in which you'll find all scoped packages.
However this was not working in CLI.

Steps to reproduce:

1. $ tns create myApp --ng
2. $ cd myApp
3. Edit project's package.json and in dependencies section keep ONLY tns-core-modules and nativescript-angular.
4. Try running the app on device or emulator - it will fail at runtime as it cannot find some modules. Now if you check platforms/android/src/main/assets/app/tns_modules/ you'll see there's no @angular dir at all