[cli] add repl

[whatwewant]

Why

• Django has python manage.py shell

[whatwewant]

related: https://github.com/koexjs/connect/issues/5

[whatwewant]

require('module-alias/register');

import * as repl from 'repl';
import { Application } from './app';

const app = new Application();

const shell = repl.start('>');
shell.context.app = app;
shell.context.ctx = app.createAnonymousContext();

app
  .prepare()
  .then(() => {
    console.log('load done');
  });