[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_i.h

@@ -0,0 +1,56 @@
+/**
+ * @file view_i.h
+ * GUI: internal View API
+ */
+
+#pragma once
+
+#include "view.h"
+#include <furi.h>
+
+typedef struct {
+    void* data;
+    FuriMutex* mutex;
+} ViewModelLocking;
+
+struct View {
+    ViewDrawCallback draw_callback;
+    ViewInputCallback input_callback;
+    ViewCustomCallback custom_callback;
+
+    ViewModelType model_type;
+    ViewNavigationCallback previous_callback;
+    ViewCallback enter_callback;
+    ViewCallback exit_callback;
+    ViewOrientation orientation;
+
+    ViewUpdateCallback update_callback;
+    void* update_callback_context;
+
+    void* model;
+    void* context;
+};
+
+/** IconAnimation tie callback */
+void view_icon_animation_callback(IconAnimation* instance, void* context);
+
+/** Unlock model */
+void view_unlock_model(View* view);
+
+/** Draw Callback for View dispatcher */
+void view_draw(View* view, Canvas* canvas);
+
+/** Input Callback for View dispatcher */
+bool view_input(View* view, InputEvent* event);
+
+/** Custom Callback for View dispatcher */
+bool view_custom(View* view, uint32_t event);
+
+/** Previous Callback for View dispatcher */
+uint32_t view_previous(View* view);
+
+/** Enter Callback for View dispatcher */
+void view_enter(View* view);
+
+/** Exit Callback for View dispatcher */
+void view_exit(View* view);