Download ansible galaxy roles as part of setup

[d-tork]

The playbooks that install docker or configure a new workstation need a role to use ansible galaxy to pull some roles before they can be referenced in the playbook. I.e., before running the role geerlingguy.docker it needs to ansible-galaxy install geerlingguy.docker.

So this is post-ansible setup, and doesn't need to be in the client setup script, but it needs to be in the config playbook. Begin with these:

• [ ] geerlingguy.docker
• [ ] ferrarimarco.bash-aliases just include a step to clone my dotfiles

[d-tork]

Actually, they need to be ansible-galaxy installed on the host. In the case of the testing, on the Vagrant host. And probably on the ansible host in production (like dolores)