Add --analyze column indicating blobs in LFS or not

[ben-spiller]

This tool is by far the best way to analyze a big repo to decide what to prune, and what to add to LFS, and I love it. But it'd be incredibly helpful if the analyze output could have a column or similar to show which blobs are in LFS. It's possible but painful to figure that out manually (especially for blobs that exist only in ancient history) and if the analysis could show that info it'd really help with finding big non-LFS'd blobs