[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/gui/view_dispatcher_i.h

@@ -0,0 +1,68 @@
+/**
+ * @file view_dispatcher_i.h
+ * GUI: ViewDispatcher API
+ */
+
+#pragma once
+
+#include <furi.h>
+#include <m-dict.h>
+
+#include "view_dispatcher.h"
+#include "view_i.h"
+#include "gui_i.h"
+
+DICT_DEF2(ViewDict, uint32_t, M_DEFAULT_OPLIST, View*, M_PTR_OPLIST)
+
+struct ViewDispatcher {
+    FuriMessageQueue* queue;
+    Gui* gui;
+    ViewPort* view_port;
+    ViewDict_t views;
+
+    View* current_view;
+
+    View* ongoing_input_view;
+    uint8_t ongoing_input;
+
+    ViewDispatcherCustomEventCallback custom_event_callback;
+    ViewDispatcherNavigationEventCallback navigation_event_callback;
+    ViewDispatcherTickEventCallback tick_event_callback;
+    uint32_t tick_period;
+    void* event_context;
+};
+
+typedef enum {
+    ViewDispatcherMessageTypeInput,
+    ViewDispatcherMessageTypeCustomEvent,
+    ViewDispatcherMessageTypeStop,
+} ViewDispatcherMessageType;
+
+typedef struct {
+    ViewDispatcherMessageType type;
+    union {
+        InputEvent input;
+        uint32_t custom_event;
+    };
+} ViewDispatcherMessage;
+
+/** ViewPort Draw Callback */
+void view_dispatcher_draw_callback(Canvas* canvas, void* context);
+
+/** ViewPort Input Callback */
+void view_dispatcher_input_callback(InputEvent* event, void* context);
+
+/** Input handler */
+void view_dispatcher_handle_input(ViewDispatcher* view_dispatcher, InputEvent* event);
+
+/** Tick handler */
+void view_dispatcher_handle_tick_event(ViewDispatcher* view_dispatcher);
+
+/** Custom event handler */
+void view_dispatcher_handle_custom_event(ViewDispatcher* view_dispatcher, uint32_t event);
+
+/** Set current view, dispatches view enter and exit */
+void view_dispatcher_set_current_view(ViewDispatcher* view_dispatcher, View* view);
+
+/** ViewDispatcher update event */
+void view_dispatcher_update(View* view, void* context);