As a User I want to add or associate documents and/or files (incl images and/or QR codes) with an itinerary (or certain Items in an Itinerary) so that the Traveller can view them whilst travelling (but also before they begin travelling).

Example use cases include:

A Customer stores scans of passports and booking confirmation files that they store in monday.com currently. If they can store them in Tourwriter then they can get rid of this function we can get rid of Monday.com

Customer mentioned that it will be super helpful if we can attach the document on the itinerary so that everything is in one place and I don't have to send those important documents separately to the customer.

Another Customer would like to have a section for the tickets and other docs to be attached in the itinerary so they are available without having to download separately before travel.

Customer mentioned that the possibility of attaching documents can be useful to attach train tickets, flights and the client to have access to everything from the same link.

Customer needs to send scans of passports to Suppliers as part of booking confirmations and needs to attach image files somehow as they often need to send QR codes for some activities.