Added less files for CSS-Formatter
Added less files for CSS-Formatter

This is a easy change to add less files to beautify. The parser doesn't work for less formatted files yet.
jay3126/sublimetext-codeformatter,baconricky/sublimetext-codeformatter,TadeuRodrigues/sublimetext-codeformatter,baconricky/sublimetext-codeformatter,TadeuRodrigues/sublimetext-codeformatter,jay3126/sublimetext-codeformatter,TadeuRodrigues/sublimetext-codeformatter,RevanProdigalKnight/sublimetext-codeformatter,jay3126/sublimetext-codeformatter,RevanProdigalKnight/sublimetext-codeformatter,RevanProdigalKnight/sublimetext-codeformatter,dgmdan/sublimetext-codeformatter,dgmdan/sublimetext-codeformatter,baconricky/sublimetext-codeformatter,dgmdan/sublimetext-codeformatter