D5431: New LESS syntax based on SCSS

[Yunhe Guo]

guoyunhe added reviewers: KTextEditor, Framework: Syntax Hightlighting.

REPOSITORY
  R216 Syntax Highlighting

REVISION DETAIL
  https://phabricator.kde.org/D5431

To: guoyunhe, #kate, #ktexteditor, #framework_syntax_hightlighting
Cc: #frameworks