Added #1 - Automatic conversion of eastern arabic numbers to western characters (numbers) in filenames

Fixed Piwigo 11 compatibility

Small change in the admin panel (conditional display of the process results)

New languages:
* English (English [UK])
* French (Français [FR])

PresyncAutoRename sanitizes your directories and files names within your gallery. It automatically corrects and renames files to a Piwigo compatible pattern.
All invalid characters are replaced with underscores so that the Synchronization process can run smoothly.
It has a simulation mode to preview which changes will be made on your files.
It automatically checks for files existence prior renaming them, appending a sequential number to them in case of duplicate.

Initial version, please test prior running on a production environment.