remove duplicate plugins data

[farfromrefug]

This happens when multiple deps have another common dependencies.
This fix has one direct consequences which makes app build faster.
Before this native plugins where built multiple times.
As an example for this app using my material components.
Before this commit :

pluginsData 37 [
  '@nativescript-community/css-theme',
  '@nativescript-community/text',
  '@nativescript-community/ui-material-activityindicator',
  '@nativescript-community/ui-material-bottom-navigation',
  '@nativescript-community/ui-material-bottomnavigationbar',
  '@nativescript-community/ui-material-bottomsheet',
  '@nativescript-community/ui-material-button',
  '@nativescript-community/ui-material-cardview',
  '@nativescript-community/ui-material-core',
  '@nativescript-community/ui-material-dialogs',
  '@nativescript-community/ui-material-floatingactionbutton',
  '@nativescript-community/ui-material-progress',
  '@nativescript-community/ui-material-ripple',
  '@nativescript-community/ui-material-slider',
  '@nativescript-community/ui-material-snackbar',
  '@nativescript-community/ui-material-speeddial',
  '@nativescript-community/ui-material-tabs',
  '@nativescript-community/ui-material-textfield',
  '@nativescript-community/ui-material-textview',
  '@nativescript/core',
  '@nativescript/iqkeyboardmanager',
  '@nativescript/theme',
  'nativescript-vue',
  '@nativescript-community/ui-material-core',
  '@nativescript-community/ui-material-core',
  '@nativescript-community/ui-material-core',
  '@nativescript-community/ui-material-core',
  '@nativescript-community/text',
  '@nativescript-community/ui-material-core',
  '@nativescript-community/ui-material-core',
  '@nativescript-community/ui-material-core',
  '@nativescript-community/ui-material-textfield',
  '@nativescript-community/ui-material-core',
  '@nativescript-community/ui-material-core',
  '@nativescript-community/text',
  '@nativescript-community/ui-material-core',
  '@nativescript-community/text'
]

After this plugin:

pluginsData 23 [
  '@nativescript-community/css-theme',
  '@nativescript-community/text',
  '@nativescript-community/ui-material-activityindicator',
  '@nativescript-community/ui-material-bottom-navigation',
  '@nativescript-community/ui-material-bottomnavigationbar',
  '@nativescript-community/ui-material-bottomsheet',
  '@nativescript-community/ui-material-button',
  '@nativescript-community/ui-material-cardview',
  '@nativescript-community/ui-material-core',
  '@nativescript-community/ui-material-dialogs',
  '@nativescript-community/ui-material-floatingactionbutton',
  '@nativescript-community/ui-material-progress',
  '@nativescript-community/ui-material-ripple',
  '@nativescript-community/ui-material-slider',
  '@nativescript-community/ui-material-snackbar',
  '@nativescript-community/ui-material-speeddial',
  '@nativescript-community/ui-material-tabs',
  '@nativescript-community/ui-material-textfield',
  '@nativescript-community/ui-material-textview',
  '@nativescript/core',
  '@nativescript/iqkeyboardmanager',
  '@nativescript/theme',
  'nativescript-vue'
]

It means the native build of the app plugins got reduced by 60%

PR Checklist

• The PR title follows our guidelines: https://github.com/NativeScript/NativeScript/blob/master/CONTRIBUTING.md#commit-messages.
• 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.
• You have signed the CLA.
• All existing tests are passing: https://github.com/NativeScript/nativescript-cli/blob/master/CONTRIBUTING.md#contribute-to-the-code-base
• Tests for the changes are included.

What is the current behavior?

What is the new behavior?

Fixes/Implements/Closes #[Issue Number].