[+] Add support for ng-add schematics

[santoshyadavdev]

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Add support for ng-add schematics, to automate the initial setup.

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Refer angular material, where they have schematics support.

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https://material.angular.io/guide/getting-started#alternative-2-angular-devkit-6-

[samuil4]

Reward for completing a MR: 1 DEV