Add ability to flag games for deletion or review.

With opening up the PC end and letting users add the content, I check occasionally if my games have been added to the list. Recently I came across this item.

https://www.pricecharting.com/game/pc-games/diablo-iii-rise-of-the-necromancer

This is a digital only release and only keys are being sold for this. Mostly through Blizzard's own store.

As this is digital only, I'd like to flag this for deletion (or at least review), since I believe it should not be tracked.