Accept list of cores/cpu as arg

[karampok]

Is your feature request related to a problem? Please describe.
When the system has many CPUs (50+), the default view is overwhelming. Ideally we need to review a subset of the number of the core/cpus like the cpu an specific app is running in a fast way. Modify the conf file or using the ui is not fast.

Describe the solution you'd like
Given an argument like --cpuset 4-7,36-39 to make a visible view (True in the config file) of only those cpus 4,5,6,7,36,37,38,39 and only the cores 3,4 (if single numa)

Thanks