Add option to show only missing dependencies

[ThiloteE]

Hello Ihak, I am on Windows 10 with 32GB RAM.

I used Dependencies to check a torch_cuda.dll (~ 900mb) for missing dependencies, but there are sooo many dependencies in that file, that it is hard to come up with a comprehensive list of dependencies that are missing.

My current approach is to set "recursively" in the settings and expand all items and then to sort the list by checksum, which also shows the missing ones, but then selecting the dependencies has led to the app crashing twice now (task manager showed there is still lots of RAM available). I am attempting again, but loading this long list of item takes a long time, so I was thinking of what I could do in the meantime and here I am :D

I want to select the list of items (only the missing dependencies) to copy and paste them into a text file, because I need this data to report a bug.