[FL-3400] External menu apps (#2849)

* FBT, applications: add MENUEXTERNAL app type
* FBT, uFBT: build MENUEXTERNAL as EXTERNAL app
* Loader menu: show external menu apps
* LFRFID: move to sd card
* FBT: always build External Applications list
* Archive: look for external apps path
* Infrared: move to sd card
* Apps: add "start" apps
* iButton: move to sd card
* BadUSB: move to sd card
* External apps: update icons
* GPIO: move to sd card
* Loader: look for external apps path
* U2F: move to sd
* SubGHz: move to sd
* Apps: "on_start" metapackage
* NFC: move to sd
* Sync f7 and f18

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

applications/services/loader/loader.c

@@ -170,6 +170,16 @@ static const FlipperInternalApplication* loader_find_application_by_name(const c
     return application;
 }
 
+static const char* loader_find_external_application_by_name(const char* app_name) {
+    for(size_t i = 0; i < FLIPPER_EXTERNAL_APPS_COUNT; i++) {
+        if(strcmp(FLIPPER_EXTERNAL_APPS[i].name, app_name) == 0) {
+            return FLIPPER_EXTERNAL_APPS[i].path;
+        }
+    }
+
+    return NULL;
+}
+
 static void loader_start_app_thread(Loader* loader, FlipperInternalApplicationFlag flags) {
     // setup heap trace
     FuriHalRtcHeapTrackMode mode = furi_hal_rtc_get_heap_track_mode();
@@ -379,6 +389,14 @@ static LoaderStatus loader_do_start_by_name(
             break;
         }
 
+        // check External Applications
+        {
+            const char* path = loader_find_external_application_by_name(name);
+            if(path) {
+                name = path;
+            }
+        }
+
         // check external apps
         {
             Storage* storage = furi_record_open(RECORD_STORAGE);

applications/services/loader/loader_menu.c

@@ -52,12 +52,18 @@ static void loader_menu_start(const char* name) {
     furi_record_close(RECORD_LOADER);
 }
 
-static void loader_menu_callback(void* context, uint32_t index) {
+static void loader_menu_apps_callback(void* context, uint32_t index) {
     UNUSED(context);
     const char* name = FLIPPER_APPS[index].name;
     loader_menu_start(name);
 }
 
+static void loader_menu_external_apps_callback(void* context, uint32_t index) {
+    UNUSED(context);
+    const char* path = FLIPPER_EXTERNAL_APPS[index].path;
+    loader_menu_start(path);
+}
+
 static void loader_menu_applications_callback(void* context, uint32_t index) {
     UNUSED(index);
     UNUSED(context);
@@ -89,13 +95,24 @@ static uint32_t loader_menu_exit(void* context) {
 
 static void loader_menu_build_menu(LoaderMenuApp* app, LoaderMenu* menu) {
     size_t i;
+
+    for(i = 0; i < FLIPPER_EXTERNAL_APPS_COUNT; i++) {
+        menu_add_item(
+            app->primary_menu,
+            FLIPPER_EXTERNAL_APPS[i].name,
+            FLIPPER_EXTERNAL_APPS[i].icon,
+            i,
+            loader_menu_external_apps_callback,
+            (void*)menu);
+    }
+
     for(i = 0; i < FLIPPER_APPS_COUNT; i++) {
         menu_add_item(
             app->primary_menu,
             FLIPPER_APPS[i].name,
             FLIPPER_APPS[i].icon,
             i,
-            loader_menu_callback,
+            loader_menu_apps_callback,
             (void*)menu);
     }
     menu_add_item(