Add support to ComicStrip with Chats

[JpEncausse]

As a user I want to see, improve and storytell funny conversation In order to share it and spread the bot

In a nutshell

• Find a way to trigger ComicStrip generation
• Use that kind of library: https://github.com/darwin/cmx.js

Get inspired

• by Striply (http://www.strip.ly/fr/)
• by NearGroup dating app