code: function readControls( controlPath, filingCabinet ) {
  
    logger.showInfo( '*** Reading controls...' );
  
    // Initialize the store - engine controls.
    logger.showInfo( 'Engine controls:' );
    getControls(
      '/node_modules/md-site-engine/controls',
      '',
      filingCabinet.controls
    );
  
    // Initialize the store - user controls.
    logger.showInfo( 'Site controls:' );
    getControls(
      controlPath,
      '',
      filingCabinet.controls
    );
  }
docs: Reads all controls, including engine's predefined controls.
  @param {string} controlPath - The path of the controls directory.
  @param {FilingCabinet} filingCabinet - The file manager object.