text: const loggin = require('../..'); // require('loggin-js');
  const plugin = require('./severity.js');
  
  loggin.use(plugin);
  
  let formatter = loggin.formatter('long');
  let logger = loggin.logger({
      level: loggin.severity('custom'),
      color: true,
      formatter: formatter
  });
  
  logger.debug('asdasd');
  logger.custom('custom level');
  
  