Added rough draft of the Robottelo code standards

This is the initial draft of the Robottelo Code Standards.
I have created the format and some basic guidelines and background.
However, it will be up to the other members of the team to fill in
items that they feel are important.

This addresses #1496 
> we can add links to justify each line

We could add a link. The background behind this point is very simple, though: single quotes are less visually noisy than double quotes, and they are easier to type.