SASS lang as a replacment of LESS

LESS for various resons and implementataion quality for us wasn't a good choice. So we decided to create own tools and theme for Magento 2 and replace everything, because we can.

https://github.com/SnowdogApps/magento2-frontools

Installs:  23 642
Stars:     186
Watchers:  34
Forks:     63

https://github.com/SnowdogApps/magento2-theme-blank-sass

Installs:  16 456
Stars:     177
Watchers:  35
Forks:     52

And this brings us to cooperation with Magento Core team.