[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/gui/modules/submenu.c

@@ -1,23 +1,22 @@
 #include "submenu.h"
-#include "gui/canvas.h"
+
 #include <m-array.h>
-#include <furi.h>
 #include <gui/elements.h>
-#include <stdint.h>
-
-struct SubmenuItem {
-    const char* label;
-    uint32_t index;
-    SubmenuItemCallback callback;
-    void* callback_context;
-};
-
-ARRAY_DEF(SubmenuItemArray, SubmenuItem, M_POD_OPLIST);
+#include <furi.h>
 
 struct Submenu {
     View* view;
 };
 
+typedef struct {
+    const char* label;
+    uint32_t index;
+    SubmenuItemCallback callback;
+    void* callback_context;
+} SubmenuItem;
+
+ARRAY_DEF(SubmenuItemArray, SubmenuItem, M_POD_OPLIST);
+
 typedef struct {
     SubmenuItemArray_t items;
     const char* header;
@@ -149,7 +148,7 @@ View* submenu_get_view(Submenu* submenu) {
     return submenu->view;
 }
 
-SubmenuItem* submenu_add_item(
+void submenu_add_item(
     Submenu* submenu,
     const char* label,
     uint32_t index,
@@ -168,8 +167,6 @@ SubmenuItem* submenu_add_item(
             item->callback_context = callback_context;
             return true;
         });
-
-    return item;
 }
 
 void submenu_clean(Submenu* submenu) {