Add support for stylelint-config-standard-scss

[sthasubin429]

Adding stylelint-config-standard-scss config instead of using stylelint-scss

Documentation of stylelint-scss recommends using stylelint-config-standard-scss instead of using the plugin directly.

[maxolasersquad]

I am using stylelint-config-standard-scss, and when I try to use it with Code Climate I get the following failure.

Running stylelint: Done!
error: (CC::CLI::Analyze::EngineFailure) engine stylelint failed with status 1 and stderr 
•• Timing: .engineConfig: 0.01s
Error: Unexpected token ?
See our documentation at https://docs.codeclimate.com/docs/stylelint for more information.

The plugin works great when using Stylelint directly.