[Feature Request] Allow configuration of used css language per Repository

[reckter]

I am currently using stylus in a styled-jsx project, with this plugin to have highlighting in webStorm.
I couldn't find a way to set it up, so that webStorm automatically does the appropriate highlighting in the tags.
WebStorm does support it if I add {/* laungage=styl */} before the styled jsx tag, but that is not that nice imo.
So my feature request:
Make it possible to configure the used css language per project in the settings.

Have a nice Day,
Hannes