Created missing folders

These folders got deleted due to no files being in them and git
therefore discarding them. Unlike loffty's commit at
https://github.com/zpanel/zpanelx/commit/92fec7c50da695a003afae66f476f61b3472691a
I did not deny access to each folder using a .htaccess as the .htaccess
in the root of Roundcube's folder already does this.