Initial sass project setup

## What?
1. Add `gulp-ruby-sass` instead of `gulp-sass`. Now we´ve ruby as a dev dependency. I prefer this version because LibSass has not support for latest sass version and do not support .sass syntax. We can switch in the future

2. First set up of scoreboard layout with a bit of Flex

## TODO
Better layout. this is a first step but we need to improve it....and add a design (we need to make a mockup of what we want)

## Trenecito
This is a trenecito from https://github.com/fcsonline/topspinjs/pull/14