investigate move tracking availability on large repos #159
Description
on many repos, I notice that moves are not showing up in the graphs
I have also seen a message from git log that move tracking is disabled because there are too many files
we should evaluate whether we should continue to display the move graphs and columns if this stat is only available in git for smaller repos, and should possibly detect when we could show it
we should also look at git settings as per the output to see if this can be enabled full time in git log output, though this may also not be a good idea if git is turning it off for performance reasons
(if it is a setting in git history that happens before git log, we may not be able to do anything)