Introduce port argument

Author: mkuklis

lib/commands/federate.js

@@ -50,6 +50,10 @@ module.exports = {
         describe: 'Run the Webpack Bundle Analyzer after build (launches in browser)',
         type: 'boolean',
       })
+      .option('port', {
+        describe: 'A port which will be used for the remote federated module',
+        type: 'number',
+      })
       .example('$0 federate', 'federate a module');
   },
   handler: federateCommand,