Provide Total Number label in large data lists (If adding folder selection isn't an option)

[RandyPenird]

Some Geotools in Pro do NOT allow for the FOLDER selection, rather items have to be selected individually (specifically Rasters, for example). 

A Total Item count for my processing list will go a long way in reading the messages and seeing how many files have yet to be parsed. This is especially important as the progress bar is an infinite loop, and doesn't show actuall percentage progress. 

Attached is a mockup of the label and where I would image it'd go: (see the number "38" in parenthesis signifying list length)