Rendering Dialog "Time Elapsed" & "Time Remaining"

Description:

Have the "Time Elapsed" display accurately the actual time elapsed since beginning the render and "Time Remaining" display (at least) a reasonable estimate of the time remaining for the current task.

How Used:

There is nothing for the user to do, as it's merely displaying information. There are no changes to the UI since the "Time Elapsed" and "Time Remaining" areas are already there. They just need to actually work.

Feature Affinity:

Rendering