fix: avoid duplicate modules from tns-core-modules and @nativescript/core

[DimitarTachev]

The AngularCompilerPlugin is resolving the files based on the paths property from the tsconfig and we have to unify the core modules package name in order to avoid duplicate modules causing app crashes on Android.

PR Checklist

• [x] The PR title follows our guidelines: https://github.com/NativeScript/NativeScript/blob/master/CONTRIBUTING.md#commit-messages.
• [x] There is an issue for the bug/feature this PR is for. To avoid wasting your time, it's best to open a suggestion issue first and wait for approval before working on it.
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• [x] All existing tests are passing: https://github.com/NativeScript/nativescript-dev-webpack/blob/master/CONTRIBUTING.md#testing-locally-by-running-e2e-tests
• [ ] Tests for the changes are included.

What is the current behavior?

vendor.js contains both the @nativescrip/core/ui/application and the proxy tns-core-modules/ui/application in Angular apps with short imports support in their tsconfig:

"paths": {
    "*": [
        "./node_modules/tns-core-modules/*",
        "./node_modules/*"
    ],
    "~/*": [
        "app/*"
    ]
}

What is the new behavior?

We are processing the tsconfig paths and unifying the core modules package name in order too keep a single package name in the generated code.

Related to: may failing Angular related e2e tests

[vhristov5555]

test --webpack-apps

[DimitarTachev]

test --webpack-apps