[apps/settings] Implement structure of settings app

Change-Id: If42dc3fcb363e3ceac0dda9f89394f2535ab09be

apps/settings/app.cpp

@@ -0,0 +1,14 @@
+#include "app.h"
+#include "settings_icon.h"
+
+namespace Settings {
+
+App::App(Container * container) :
+  ::App(container, &m_stackViewController, "Parametre", "PARAMETRE", ImageStore::SettingsIcon),
+  m_preference(),
+  m_mainController(MainController(nullptr)),
+  m_stackViewController(StackViewController(&m_modalViewController, &m_mainController))
+{
+}
+
+}