Allow reporting on low volume object MDA data logs

Now that we have the ability to view audit logs on fields that exist on low-volume objects, we should be able to report on them too. This ability would really make this feature a must-have and would help curb the need to create entirely new snapshot MDA objects from scratch, which require quite a bit of Admin effort and knowledge to create and maintain. 

My use case is that a customer on our NXT edition needs to be able to track a field on the relationship object and trigger a program once a relationship changes its status from Field A to Field B. With SFDC’s field tracking ability, we could do this pretty easily. In Gainsight, it’s not possible at all using our audit logs. 

Note: this is a little different request from @marcelo’s post regarding an audit trail, although I think the two ideas could be merged.