feat: add schematics to the library (ng add @angular-material-extensions/faq)

[AnthonyNahas]

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Bug Report or Feature Request (mark with an x)

- [ ] bug report -> please search issues before submitting
- [x] feature request

Desired functionality

the developer should be able to add the library via schematics

ng add @angular-material-extensions/faq

and everything should be already setup e.g: add import statement of the lib to app.module.ts