[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/plugins/bt_hid_app/bt_hid.h

@@ -0,0 +1,38 @@
+#pragma once
+
+#include <furi.h>
+#include <bt/bt_service/bt.h>
+#include <gui/gui.h>
+#include <gui/view.h>
+#include <gui/view_dispatcher.h>
+#include <notification/notification.h>
+
+#include <gui/modules/submenu.h>
+#include <gui/modules/dialog_ex.h>
+#include "views/bt_hid_keynote.h"
+#include "views/bt_hid_keyboard.h"
+#include "views/bt_hid_media.h"
+#include "views/bt_hid_mouse.h"
+
+typedef struct {
+    Bt* bt;
+    Gui* gui;
+    NotificationApp* notifications;
+    ViewDispatcher* view_dispatcher;
+    Submenu* submenu;
+    DialogEx* dialog;
+    BtHidKeynote* bt_hid_keynote;
+    BtHidKeyboard* bt_hid_keyboard;
+    BtHidMedia* bt_hid_media;
+    BtHidMouse* bt_hid_mouse;
+    uint32_t view_id;
+} BtHid;
+
+typedef enum {
+    BtHidViewSubmenu,
+    BtHidViewKeynote,
+    BtHidViewKeyboard,
+    BtHidViewMedia,
+    BtHidViewMouse,
+    BtHidViewExitConfirm,
+} BtHidView;