Some big changes here:
Rename connection.py to server.py
Refactor about half of server.py into a new types.py module which builds
classes for each resource type, and auto-builds links to fetch
sub-resources from each type.
Add examples/walk-chassis.py to demonstrate how to use the Root and
Chassis classes to walk all the objects returned from /rest/v1/chassis/
Import oslo_log and start using it (more to do here, it's not working
quite yet).
2a70e6e765