Support passing extra []grpc.DialOption to connection pool and export it
Makes it possible to set interceptors, etc.
I was about to build a connection cache for Gitaly, like in Workhorse, and was thinking of moving the code from Workhorse, but then I found that it has just been made available as a library in !2345 (merged).
I'd like to be able to set various interceptors/etc via options (like Workhorse, see the link) so here is an MR that adds this capability.
Edited by Mikhail Mazurskiy