User should be able to attach a file to a Cart Item

[pdt256]

Cart & Checkout

• [ ] Attachments should be visible on each Cart Item.
• [ ] Allow User or Anonymous to upload multiple Attachments to a Cart Item
• [ ] Allow User or Anonymous to delete Attachments from a Cart Item

Anonymous Attachment Upload to Cart

• [ ] User should be able to share a secure URL with an Anonymous user to upload an attachment to their Cart Item
  • This will enable someone to purchase gifts for multiple people where they could independently upload their files before or after checkout.

Admin Panel

• [ ] Admin User should be able to upload/delete Attachments for Cart Items.