Add property.setter for attributes of type NamespaceSet

All classes that inherit from class Namespace should have property.setter for each NamespaceSet attribute, so that each NamespaceSet attribute can be set with iterable object.

Example:

shell = AssetAdministrationShell(asset, identification)
...
shell.view = [view1, view2, view3]
...
shell.view = (view1, view2)