Issues including Moment.js library for use with Tabulator in Vue.js

I am trying to use the Date Time functionality with Tabulator which requires the moment.js library. In my application before adding Tabulator, moment.js was already being used in certain components that level. I have a new test component that uses Tabulator and attempts to use datetime. Typically I would just import moment and use it here but it seems that moment is required within Tabulator itself.

My first thought is that Moment.js needs to be setup globally in my application so I did that.

Main.js:

```
   import Vue from 'vue'
   import App from './App'
   import router from './router'
   import { store } from './store'
   import Vuetify from 'vuetify'
   import 'vuetify/dist/vuetify.min.css'
   import moment from 'moment'

   Vue.prototype.moment = moment

   ...............

   new Vue({
   el: '#app',
   data () {
    return {
      info: null,
      loading: true,
      errored: false // this.$root.$data.errored
    }
  },
  router,
  components: { App },
  template: '<App/>',
  store
  })

```

In my component (Testpage.vue)

```
<template>
  <div>
    <div ref="example_table"></div>
  </div>
</template>

<script>
// import moment from 'moment'
var Tabulator = require('tabulator-tables')
export default {
  name: 'Test',
  data: function () {
    return {
      tabulator: null, // variable to hold your table
      tableData: [{id: 1, date: '2019-01-10'}] // data for table to display
    }
  },
  watch: {
    // update table if data changes
    tableData: {
      handler: function (newData) {
        this.tabulator.replaceData(newData)
      },
      deep: true
    }
  },
mounted () {
    // instantiate Tabulator when element is mounted
    this.tabulator = new Tabulator(this.$refs.example_table, {
      data: this.tableData, // link data to table
      columns: [
        {title: 'Date', field: 'date', formatter: 'datetime', formatterParams: {inputFormat: 'YYYY-MM-DD', outputFormat: 'DD/MM/YY', invalidPlaceholder: '(invalid date)'}}
      ],
}
</script>
```

I receive the error: "Uncaught (in promise) Reference Error: moment is not defined at Format.datetime (tabulator.js?ab1f:14619)" I am able to use moment in other components by using this.$moment() but I need for it to be available in node_modules\tabulator-tables\dist\js\tabulator.js since thats where the error is happening. Any idea how to include the library?