Write base classes and protocols that may act as a facade between DMOD and Docker

[christophertubbs]

blocked by #704

Expected Products

A new package named something along the lines of dmod.orchestration that defines base classes, protocols, configuration, and stubs for factories. It might be appropriate to use dmod.scheduler rather than a new package.

[robertbartel]

@christophertubbs, a good conversation was had in #556 that will relate to this work.