display product attachments at the product details page

[shauke]

The PWA does currently not support the display of product attachments even though the ICM REST API provides all necessary information now (see https://intershoppwa.azurewebsites.net/INTERSHOP/rest/WFS/inSPIRED-inTRONICS-Site/rest/products/201807231-01).

With the link information a working URL can be constructed that will download the attachment, e.g.
https://intershoppwa.azurewebsites.net/INTERSHOP/rest/WFS/inSPIRED-inTRONICS-Site/rest;loc=en_US/attachments/inSPIRED%253A%252Fmanuals%252Fsurface-book-user-guide-EN.pdf

With this information product attachment information similar to the Responsive Starter Store should be implemented.

https://pwa-ish-demo.test.intershop.com/INTERSHOP/web/WFS/inSPIRED-inTRONICS-Site/en_US/-/USD/ViewProduct-Start?SKU=201807231-01&CategoryName=897_Microsoft&CategoryDomainName=inSPIRED-Computers

AB#64627

[M-Behr]

New IAD/VD:
The UX team would like to replace the icon with a link to make the "Download" action clearer, as well as change the headline so that the content reflects expectations.