Box Device Pinning - Test and Document

Box Device Pinning could be used to track Box Sync logins by user however it may have broader implications for end user device access. Need to do some testing and document the behavior.

This may be important in situations where a device has Box Sync installed and the user is actively logged in when it goes out for repair. We have had recent issues with Box Sync where being able to force a logout would have been beneficial.