Homestyx hydra

R1:956c4058e64c

Add a `bin/conduit call` support binary

Summary:
Ref T13060. See PHI343. Triaging this bug required figuring out where in the pipeline UTF8 was being dropped, and bisecting the pipeline required making calls to Conduit.

Currently, there's no easy way to debug/inspect arbitrary Conduit calls, especially when they are `diffusion.*` calls which route to a different host (even if you have a real session and use the web console for these, you just see an HTTP service call to the target host in DarkConsole).
Repository: R1 hydra
Commit Date: Feb 5 2018