Add parsing of a Vue Instance

Summary

When using a Vue instance, data object is used as Vue’s reactivity system.

Vuedoc Parser should be able to correctly parse a Vue Instance definition.

Example

/**
 * A Vue Instance description
 */
export default new Vue({
  data: {
    newTodoText: '',
    visitCount: 0,
    hideCompletedTodos: false,
    todos: [],
    error: null
  },
  created: function () {
    this.$emit('created')
  }
})

References