Add link for "Uri" objects

Message Registry File resources contain a "Uri" pointing to the
location of the Message Registry.  This change makes the "Uri"
object a link that can be clicked to jump to the Message Registry.

Tested:
Verified that the "Uri" field is a link and takes you to the
Message Registry.

Change-Id: I33a443cffa7ed2f4c92f4a572d7186ef45be17f3
Signed-off-by: Jason M. Bills <jason.m.bills@linux.intel.com>