Fixes #76

Fixes #68

…services + ignore services in machine.slice by default

This commit adds support for services with a delegate cgroup subhierarchy and introduces the `-m/-M` option to include or not services in `machine.slice` (default is no).

Parts of the patch are taken from #61 (comment) & #61 (comment)

Fixes #61

This commit aims to introduce an ignored service list that contains services that are known to cause parsing errors and/or issues when being restarted. Elements can be added to the list with the `-i "service_name".service` option (e.g. `checkservices -i sddm.service -i NetworkManager.service`)

Show usage and exit if the `-i` argument does not finish with `.service` (to ensure a precise parsing and avoid unexpected filtering)

Fixes #44

Don't enforce white color, use terminal default instead

Ignore /memfd: lines in checkservices

Add support for services with a delegate cgroup subhierarchy in checkservices + ignore services in machine.slice by default

Add a configurable "ignored service" list to checkservices

Even though the -R flag were parsed it were not honored and there was no way to
skip being asked for restart with the -R flag. Useful for putting checkservices
in an alpm hook.

checkservices: honor -R flag