Should have support to upload files with tickets

[mayeenulislam]

User Frederic Sune asked for:

The only important thing is missing is the possibility to download/attach a file

And user Alvaro Gois dos Santos repeated:

...have you considered a way to upload files when a user submits a ticket? It could be useful for screenshots.

And repeated by raulpinadesign:

This plugin works with pdf files?

And repeated by alexlii:

...sometimes, we need images like screenshot or photos from customers, so it would be great if it support insert or attach images in a ticket.

And repeated by elizxer:

Can you please add attachment or upload for each message, that would be great.