cgroups detailed checks

[tattish]

This is for checking cgroups, at least tested and works for RHEL. Lists the config files, checks the services, and list the hierarchies followed by all the settings and states inside (including the tasks also,). Raise your concerns and will adopt accordingly.
Best,
Attish

[tattish]

So based on background discussions the code has an issue, with the hardcoded moutnpoint of the control group which is for sure wrong while it can be differently mounted. My proposed resolution for this, is the following, (what i will shortly implement till than please do not merge this pull request.) the real mountpoints of cgroup pseudo filesystems can be gathered from /proc/mounts , so i will list the moutnpoints from there and will read the config files recursively on all mounted controllers.

Best,
Attish