Remove double declaration
Abstract name set
-- lint
listByOrder for name sets
Add _isLiveList_ mark to all live lists
No need for direct ns relation
Do not create relations when not necessary
Generic approach to extension properties
Pass extensions further
Fix reference to listMethod
Configure lists for set in separate module
Require extension whenever used
Items live list for relations sets
Live maps for live lists
Ordered values and items list for relation sets
Support of thisArg argument for live map
Take into account thisArg when memoizing