[fr] a few new error detection inspired from Grammalecte:
     - *rester chez soit* -> "rester chez soi"
     - *à haute voie* -> "à haute voix"
     - *soit-disant* *soi disant* -> "soi-disant"


git-svn-id: https://languagetool.svn.sourceforge.net/svnroot/languagetool/trunk/languagetool@9479 2fe6a88b-1217-0410-b804-ba6ed01314b8