feat(Schema): Decorators support

[luvkapur]

This PR updates the schema extractor to identify and extract schema information about decorators.
It also updates the API Reference UI to render extracted decorator API information.

/**
 * comment component
 */
@Component({
  /**
   * docs: https://angular.io/api/core/Component
   */
  selector: 'app-my-output',
  /**
   * example of a multiline comment
   */
  inputs: ['bankName', 'id: account-id'],
  /**
   * template with a multiline comment
   */
  template: `
    <app-interval-dir
      (everySecond)="onEverySecond()"
      (everyFiveSeconds)="onEveryFiveSeconds()"
    ></app-interval-dir>
  `,
})
export class MyOutputComponent {
  onEverySecond() {
    console.log('second');
  }
  onEveryFiveSeconds() {
    console.log('five seconds');
  }
}