View is not a namespace, but an interface,
So, View_List cannot be under the view namespace for now.
it looks more suite to be end as View than List on this widget name.
Firstly, it follows our common naming rules of class.
Also, List_View is commonly presentable name on most UI frameworks,
so it is very easy to understand what this widget can do for the user.
Example is not works for now til stable model interface.
Reviewers: felipealmeida, woohyun, cedric, Hermet
Reviewed By: Hermet
Subscribers: larryolj, cedric, #reviewers, #committers
Differential Revision: https://phab.enlightenment.org/D7234