Add a logrotate role that allows basic configuration of a logrotate
configuration for a specific log-file.
Use this role in the ansible-cron and install-ansible roles to ensure
the log output they are generating is rotated.
This role is not intended to manage the logrotate package (mostly to
avoid the overhead of frequently checking package state when this is
expected to be called for multiple configuration files on a server).
We add it as a base package to our servers.
Tests are added for testinfra.
Change-Id: I90f59c3e42c1135d6be120de38e942ece608b761
3657cacfca