#76 Use 1000 Separator for Folder and File Size

[John Sanchez]

The folder and file size should have a thousands separator to increase readability.
Separator format comma or dot should depend on localization

Current:
Volume Size 59353 MB (62236301294 bytes)
File.txt 39146 6MB

With thousands separator:
Volume Size 59.353 MB (62.236.301.294 bytes)
Volume Size 59,353 MB (62,236,301,294 bytes)

File.txt 39.146 6MB
File.txt 39,146 6MB

[Fulvio Senore]

Done.