Work towards initial support for simulating a Tonic app

[gardnervickers]

The goal with this PR is to add support for Tonic, along with some basic fault injection strategies.

The overall goal is to use Tonic to write tests and examples by providing support for running Tonic client and servers on the deterministic runtime.

TODO

• [x] Restructure networking to be more amenable to fault injection.
• [x] Split out environment components in order to break circular dependencies.
• [ ] Fault injection tasks.
  • [ ] ~Swizzle clog generator generator.~
  • [x] Latency generator.
  • [x] Latency injector.
• [x] Hyper Server and Client types
• [x] Integration with Tonic.
  • [x] Server
  • [x] Client