Integrate churn Gem into Rubycritic to Speed Up RubyCritic Churn Computation #498
Description
Problem: I use rubycritic on some repositories and some take 15+ minutes, which seems similar to #490.
Solution: I @Greg-Myers-SB found this gem by Dan Mayer (see Churn's Github page) and found it was a lot faster. Can using the said gem happen?