[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/services/desktop/desktop_i.h

@@ -0,0 +1,77 @@
+#pragma once
+
+#include "desktop.h"
+#include "animations/animation_manager.h"
+#include "views/desktop_view_pin_timeout.h"
+#include "views/desktop_view_pin_input.h"
+#include "views/desktop_view_locked.h"
+#include "views/desktop_view_main.h"
+#include "views/desktop_view_lock_menu.h"
+#include "views/desktop_view_debug.h"
+#include "views/desktop_view_slideshow.h"
+#include <desktop/desktop_settings.h>
+
+#include <furi.h>
+#include <gui/gui.h>
+#include <gui/view_stack.h>
+#include <gui/view_dispatcher.h>
+#include <gui/modules/popup.h>
+#include <gui/scene_manager.h>
+
+#include <loader/loader.h>
+#include <notification/notification_app.h>
+
+#define STATUS_BAR_Y_SHIFT 13
+
+typedef enum {
+    DesktopViewIdMain,
+    DesktopViewIdLockMenu,
+    DesktopViewIdLocked,
+    DesktopViewIdDebug,
+    DesktopViewIdHwMismatch,
+    DesktopViewIdPinInput,
+    DesktopViewIdPinTimeout,
+    DesktopViewIdSlideshow,
+    DesktopViewIdTotal,
+} DesktopViewId;
+
+struct Desktop {
+    // Scene
+    FuriThread* scene_thread;
+    // GUI
+    Gui* gui;
+    ViewDispatcher* view_dispatcher;
+    SceneManager* scene_manager;
+
+    Popup* hw_mismatch_popup;
+    DesktopLockMenuView* lock_menu;
+    DesktopDebugView* debug_view;
+    DesktopViewLocked* locked_view;
+    DesktopMainView* main_view;
+    DesktopViewPinTimeout* pin_timeout_view;
+    DesktopSlideshowView* slideshow_view;
+
+    ViewStack* main_view_stack;
+    ViewStack* locked_view_stack;
+
+    DesktopSettings settings;
+    DesktopViewPinInput* pin_input_view;
+
+    ViewPort* lock_viewport;
+
+    AnimationManager* animation_manager;
+
+    Loader* loader;
+    NotificationApp* notification;
+
+    FuriPubSubSubscription* app_start_stop_subscription;
+    FuriPubSub* input_events_pubsub;
+    FuriPubSubSubscription* input_events_subscription;
+    FuriTimer* auto_lock_timer;
+};
+
+Desktop* desktop_alloc();
+
+void desktop_free(Desktop* desktop);
+void desktop_lock(Desktop* desktop);
+void desktop_unlock(Desktop* desktop);