Improve the hosts functionality to handle whitelists and blacklists for specific commands
The aim is to allow configuring host-command restrictions in an easy way by improving the development done in #294 (closed)
Example:
[hosts]
whitelist = run bscesautosubmit01,bscesautosubmit02
blacklist= monitor bscesautosubmit01,bscesautosubmit02
For allowing running in the VMs and forbidding performing expensive monitor commands in that machines.