[gnome-games] (16 commits) Created branch wip/aplazas/views

[Adrien Plazas <aplazas src gnome org>]

The branch 'wip/aplazas/views' was created.

Summary of new commits:

  36d7451... core: Add Platform
  6ec4093... dummy: Add DummyPlatform
  4aa7a83... generic: Add GenericPlatform
  eee599f... core: Add Game.get_platform()
  ef7baf8... plugins: Add platform names to retro games
  c5407c2... ui: Add Listbox Widget
  2db2b17... ui: Add DeveloperListItem Widget
  b60c330... ui: Add PlatformsListItem Widget
  675416f... ui: Add DevelopersView Widget
  dc30c74... ui: Add PlatformsView Widget
  145121f... ui: Replace gamescollectioniconview by content-view
  7505d75... core: Add hash() & equal() methods to Developer object
  f516d35... core: Let DummyDeveloper return "Unknown"
  13217b2... ui: Add StackSwitcher Widget
  31526a6... Add SidebarView
  eb7587e... Make PlatformView inherit from SidebarView