Add a script that generates a nice gource visualization

Fuzzer support

Objective C: kSCNetworkReachabilityFlagsIsWWAN is only available on iOS

Stress test flexible config

C# performance worker improvements

Follow Node's callback-last convention for client calls

Make IP_PKTINFO optional.

Optionalize chttp2

Fix some status codes to match spec

(opt-tsan-asan.json) and short term test runs (opt.json)

Begin core componentization

different projects with the same configuration