Receiving SMS in Particle Electron

@Cameron
I have used the library from Twilio and works great. Only problem is that no information about the receiving number and has no feature for sending messages. Also good feature is that the library works with interruptions.

For sending messages @ScruffR has written an excellent example.

@Fabien
This is a excellent library, I do not have used so far but I see has a function for sending, receiving and ID feature.
I think it contains everything required for working with SMS. :+1: