Add LoC support to languages RPC in Gitaly
Part of epic: &9692
Problem
We want to expose LoC count to users, but we don't calculate it at the moment.
Proposal
- Use
scc
library to calculate LoC (see thread with more details) - Extend
CommitLanguages
RPC to return LoC data
Edited by Vasilii Iakliushin