Move calamari-setup into ../calamari_misc; add remove_package()

Signed-off-by: Dan Mick <dan.mick@inktank.com>
interactive.py: add handy "pp" for prettyprinting at the prompt

Signed-off-by: Dan Mick <dan.mick@inktank.com>
calamari.sample.yaml: I think calamari-agent needs a remotes key

Signed-off-by: Dan Mick <dan.mick@inktank.com>
calamari-agent.py: first cut at fixing up to teuthology-standard

- make a contextmanager so we can have finally clause to undo
- remotes from task config
- server from task config
- edit diamond config on remote

Signed-off-by: Dan Mick <dan.mick@inktank.com>