Add a starting point for user to view all of their OAuth2 client apps.

Similar to the group page, user can search for certain OAuth2 client

rapplications. The page will ask for user confirmation if user want to

remove a client app. The page also display a nonfunctional form for user to edit

and add new application. There is no backend support for all operations

Manually open the page with 1 OAuth client app and type to filter it out.
I cannot find any automate test for the page and form as well as the BackboneJS part.