Foreman Maintain

Fixes #20945 - rubocop convention errors & warnings

RFE #16 - Delete invalid tasks

Done changes for rubocop v0.48.1

Fixes #1 - IO operations on disk and file system

1) Removed feature DiskIO(Check is sufficent)
2) rename Concerns::DiskUtility to Utils::Disk
3) Move disk_utlity_concerns logic to Check itself
4) confine hdparm and fio
5) Error log message - verbore and descriptive...