Add `natural/version` sort option to `list->sort`

[CoffeeTableEspresso]

Either a separate function (e.g. list->nsort) or a flag to the function (list->sort('n')).

e.g. usage:

const ls = [ '1', '10', '2' ]
echo ls->sort('n'):r

output:

[ '1', '2', '10' ]