ENYO-3217: filter out files which user doesn't have the read permission.

Problem
* ares shows nothing on the HOME directory when user create new project.

Cause
* If there are files which user doesn't have the read permission where User Home directory, ares cannot show the file list.

Enyo-DCO-1.1-Signe-off-by: Junil Kim <logyourself@gmail.com>