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>
Expose GPU metrics using `sysfs/drm`.
`amdgpu` is the only driver which exposes this information through DRM.
Signed-off-by: Siavash Safi <siavash.safi@gmail.com>