support MPA router

[TomVista]

 const VueAutoRoutingPlugin = require('vue-auto-routing/lib/webpack-plugin')

module.exports = {
// ... other options ...

plugins: [
   new VueAutoRoutingPlugin([
      {
     pageName:'user',
     pages: 'src/pages/user',
     importPrefix: '@/pages/user'
    },{
     pageName:'shop',
     pages: 'src/pages/shop',
     importPrefix: '@/pages/shop'
    }
    ])
  ]
}

get this in /node_moudle/vue-auto-routing
-user.js
-shop.js
-index.js

and the vue-router

import { user,shop} from 'vue-auto-routing'

import Vue from 'vue'
import Router from 'vue-router'

Vue.use(Router)

export{
   userRouter: new Router({
  mode: 'history',
  user
  }),
  shopRouter: new Router({
    mode: 'history',
    shop
  }),
} 

the main.js

import { userRouter} from 'xxx'
new Vue({
...
userRouter,
render: h => h(app),
...
})

[ktsn]

Can we add test case for this change?

[ktsn]

Suggested change

	if (Object.prototype.toString.call(this.options) === '[object Object]') {
	if (typeof this.options === 'object') {

[TomVista]

maybe

typeof [1, 2, 4] === 'object';

typeof new Date() === 'object';

[TomVista]

for the test，
i try to do ，but I haven't written it before，so.:dog

[ktsn]

Sorry for the absence. I believe #149 would be better way to solve the original problem - you only need to pass multiple plugin instances with different output paths.