-Make the SampleNav app yellow.

-Preparation for the new ApplicationFramework binding. The App Framework provides more information.
--Adding afm D-Bus-interface introspection
--Updating the AppInfo datatype to hold the new data:
  The application info consists of:
  string id;
  string version;
  int width;
  int height;
  string name;
  string description;
  string shortname;
  string author;
  string iconPath;
-When pressing the AppLauncher Button or the Settings Button, the app layer is hidden.
--Therefore, shideLayer and showLayer is introduced in the WindowManager API
-If an application does not create its surface instantly, the HomeScreen retries to show the surface related to the pid.
-New WindowManager function deleteLayoutById
-Implement the complete HomeScreen API in the libhomescreen

Signed-off-by: Bocklage, Jens <Jens_Bocklage@mentor.com>