Add a new pattern to allow moving the flag handling out of the collector
package and into a separate package. This allows collector package users
to create their own config or flag handling.
Signed-off-by: Ben Kochie <superq@gmail.com>
* Correctly name collector file.
* Fix cgroup summary type as gauge.
* Use a boolean metric rather than a label for enabled.
Signed-off-by: Ben Kochie <superq@gmail.com>