Add progress bar when files per files

[Khalyomede]

Current

anwar@ubuntu:~/programming/predzo$ php artisan translate
Fetching langs...
Fetching files to parse...
Fetching translation keys...
Found 568 keys across 351 files for 1 lang(s).
 1/1 [▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓] 100%
Added 0 new key(s) on each lang files.

Expected

anwar@ubuntu:~/programming/predzo$ php artisan translate
Fetching langs...
Fetching files to parse...
Fetching translation keys...
 351/351 [▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓] 100%
Found 568 keys across 351 files for 1 lang(s).
 1/1 [▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓] 100%
Added 0 new key(s) on each lang files.