Werner [wm]

Results 2 issues of Werner [wm]

Add option to filter containers by 'name' attribute that will get stats collected.

## System info **Operating System**: - Flatcar Linux - kernel 5.4.66-flatcar and - Flatcar Linux - kernel 4.19.107-flatcar (also testes on CoreOS) **Shaka Packager Version**: - v2.3.0-5bf8ad5 and - v2.4.3-dd9870075f...

status: waiting on response