Enable download on folders in Content Explorer

**Describe the solution you'd like**
Similar to how you can download a file, it would be great if you could download an entire folder as a zip. It is possible in the box.com UI - would like to use it in the UI Element "Content Explorer"

**Describe alternatives you've considered**
Considered building my own UI with calls retrieving the app user's memberships, getting groups, getting folders, getting items from that folder, downloading the items.

**Additional context**
If you're already a Box customer, please send an email preview-team@box.com with your admin's information/enterprise ID.