Display Processing & Publishing duration

[Paul114]

This would be an easy feature addition that would make a lot of people happy. I always want to know how long it takes to process a table or data model and how long it takes to publish a report file to the service. Especially with large datasets, I make note of the time, step away and then it's done when I return. It would be super cool to have the message box display this duration so I know what to expect.