Add support for listing alarms.

Just getting the ball rolling on client support for the
new alarms API.

Change-Id: I66380a7bfd650357dd4ec34cbe64807ac6921163
Add support for getting individual alarms.

Include the *_actions attributes in the CLI output.

Change-Id: I19e2e7b9c60b56c0c84687694365ef3614dd0e44
Merge "Add support for listing alarms."
Merge "Add support for getting individual alarms."