Split the content of cleanup-containers into containers cleanup and host
cleanup. This allows to run the cleanup-containers from OSX clients,
while keeping needed code to delete host artifacts left behind by the
neutron agents container.
In addition, cleanup-containers may disappear in the future, replaced by
a docker-compose wrapper.
Co-Authored-By: Martin André <martin.andre@kvhasia.com>
Co-Authored-By: Swapnil Kulkarni <me@coolsvap.net>
Change-Id: I3aa731e7e0f9eb3dad9c363bb5d4a575d84a2fae
Closes-Bug: #1477383