[FL-2627] Flipper applications: SDK, build and debug system (#1387)

* Added support for running applications from SD card (FAPs - Flipper Application Packages)
* Added plugin_dist target for fbt to build FAPs
* All apps of type FlipperAppType.EXTERNAL and FlipperAppType.PLUGIN are built as FAPs by default
* Updated VSCode configuration for new fbt features - re-deploy stock configuration to use them
* Added debugging support for FAPs with fbt debug & VSCode
* Added public firmware API with automated versioning

Co-authored-by: hedger <hedger@users.noreply.github.com>
Co-authored-by: SG <who.just.the.doctor@gmail.com>
Co-authored-by: あく <alleteam@gmail.com>

applications/main/subghz/scenes/subghz_scene_saved.c

@@ -0,0 +1,26 @@
+#include "../subghz_i.h"
+
+void subghz_scene_saved_on_enter(void* context) {
+    SubGhz* subghz = context;
+
+    if(subghz_load_protocol_from_file(subghz)) {
+        if((!strcmp(subghz->txrx->decoder_result->protocol->name, "RAW"))) {
+            subghz->txrx->rx_key_state = SubGhzRxKeyStateRAWLoad;
+            scene_manager_next_scene(subghz->scene_manager, SubGhzSceneReadRAW);
+        } else {
+            scene_manager_next_scene(subghz->scene_manager, SubGhzSceneSavedMenu);
+        }
+    } else {
+        scene_manager_search_and_switch_to_previous_scene(subghz->scene_manager, SubGhzSceneStart);
+    }
+}
+
+bool subghz_scene_saved_on_event(void* context, SceneManagerEvent event) {
+    UNUSED(context);
+    UNUSED(event);
+    return false;
+}
+
+void subghz_scene_saved_on_exit(void* context) {
+    UNUSED(context);
+}