* Hardware in IGroup is now IEnumerable. No point to call ToArray each time.
* Use ValueTuple insead of custom pair.
* ListSet -> HashSet
* Ring Collection -> List
* ReadOnlyArray -> ReadOnlyList
* Unified operating system type detection
* Revert "Unified operating system type detection"
This reverts commit 3edf0edfceaca259e041e23b9930d78531366fd5.
* Introduced OperatingSystem.IsLinux instead of constant check on Os version.
* Misc