Feature Request - Add option to mark all complete items instead of just hiding them.

[badrobit]

On the "Charts & Stats" tab you have an option under "Items required to level all owned crew" it would be nice if you had the option to mark some as complete so that we could know which ones we could remove from our inventory. so instead of just excluding the ones completed maybe put a checkmark over them that lets us know we have more than what is needed without having to check the needed vs have numbers.

An even nicer addition would be if the same thing could be added to the Unneeded Items tab and with the number of instances we could remove above the add. If you were to do that I would also recommend putting text in that indicates (assuming from the name of the heading on the "Charts & Stats tab" that "The items listed here for your currently owned crew, as you add crew these items may become needed again"