[FL-1217] Menu refactoring (#726)

* menu: remove dead code
* loader: change views from modules instead of menu service
* dolphin: start main menu with loader API
* applications: don't start menu service
* loader: add debug tools menu
* gui modules: introduce menu model
* loader: remove calls to menu service API
* gui modules: implement menu module
* loader: add menu view
* gui menu: add animation
* applications: remove menu service
* gui modules: rename icon_menu -> menu
* loader: clean up code
* menu module: add documentation, format code
* menu: remove unused parameter
* desktop: use loader to launch primary menu
* Applications: cleaner makefile app declaration. Loader: application autostart
* Gui: cleanup menu and submenu API.

Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>

applications/desktop/desktop.c

@@ -21,7 +21,6 @@ bool desktop_back_event_callback(void* context) {
 Desktop* desktop_alloc() {
     Desktop* desktop = furi_alloc(sizeof(Desktop));
 
-    desktop->menu_vm = furi_record_open("menu");
     desktop->gui = furi_record_open("gui");
     desktop->scene_thread = furi_thread_alloc();
     desktop->view_dispatcher = view_dispatcher_alloc();
@@ -101,7 +100,6 @@ void desktop_free(Desktop* desktop) {
     furi_thread_free(desktop->scene_thread);
 
     furi_record_close("menu");
-    desktop->menu_vm = NULL;
 
     free(desktop);
 }