def load_filter_files(files)
      # collect the class => path => value entries from each defaults file
      hash = {}
      files.enumerate { |file| load_filter_file(file, hash) }
      logger.debug { "The migrator loaded the filters #{hash.qp}." }
      hash
    end
def load_filter_files(files)
      # collect the class => path => value entries from each defaults file
      hash = {}
      files.enumerate { |file| load_filter_file(file, hash) }
      logger.debug { "The migrator loaded the filters #{hash.qp}." }
      hash
    end
Loads the filter config files.

 @param [<String>, String] files the file or file array to load
 @return [<Class => <String => Object>>] the class => path => default value entries