[code] Program store that uses an accordeon buffer to store the

programs. The user can now add scripts.
A contextual menu displays various options when clicking on a script,
such as editing.

Change-Id: I124a17f7584b0beedb897e8499ca0a1bb6c13cbe

apps/code/Makefile

@@ -10,6 +10,8 @@ app_objs += $(addprefix apps/code/,\
   editor_controller.o\
   menu_controller.o\
   program.o\
+  program_parameter_controller.o\
+  program_store.o\
 )
 
 i18n_files += $(addprefix apps/code/,\