[CustomList] Mehtod to list events using input custom options

Besides listUpcomingEvents it would be nice to have a method listEvents that receive the list query options as parameter, enabling custom fetches. The method could be like that:

/**
   * List all events in the calendar queried by custom query options
   * See all available options here https://developers.google.com/calendar/v3/reference/events/list
   * @param {object} queryOptions to see
   * @param {string} calendarId to see by default use the calendar attribute
   * @returns {any}
   */
  public listEvents(
    queryOptions: object,
    calendarId: string = this.calendar
  ): any {
    if (this.gapi) {
      return this.gapi.client.calendar.events.list({
        calendarId,
        ...queryOptions
      });
    } else {
      console.log('Error: this.gapi not loaded');
      return false;
    }
  }

[bateradt]

I will review tomorrow morning.

[clariceabreu]

@bateradt can you review my PR please? PR https://github.com/Kubessandra/react-google-calendar-api/pull/57