Use Dobi for builds

[jgrillo-grapl]

Currently we are relying on undocumented and unsupported behavior in docker-compose build to build our containers in dependency order. There are hacks in the docker-compose.build.yml file to achieve this where we tag and spin up intermediate build container images which really should be ephemeral. This is brittle, and forces us to execute builds serially when there is ample room for parallelism. Using Dobi should give us faster, more reliable builds.

[jgrillo-grapl]

#146