Add event support

[Wats0ns]

Add support to the Events API.
There is several methods to implement (non-exhaustive list):

• Fetch Events
• Suscribe/Unsuscribe
• Enter token for event

This should be of course done in events.js

[Wats0ns]

Register/Unregiser is not to be done for the POC. Note that this issue was created at an early stage of the projet, so it might not make sense to separate the event wrapper

[lodi-g]

I'll do that.

[lodi-g]

I'm not sure what do you mean by events right now: I thought it was the /module/board endpoint but it seems to be already done or at least a WIP in the projects.js file.
What's the difference between projects & events?

[Wats0ns]

Every module got several activities (kick-off, Bootsrap, project) and every activities can have several events (you can have one kick-off session in the morning and one in the afternoon)