[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/bt/bt_service/bt_i.h

@@ -0,0 +1,66 @@
+#pragma once
+
+#include "bt.h"
+
+#include <furi.h>
+#include <furi_hal.h>
+
+#include <gui/gui.h>
+#include <gui/view_port.h>
+#include <gui/view.h>
+
+#include <dialogs/dialogs.h>
+#include <power/power_service/power.h>
+#include <rpc/rpc.h>
+#include <notification/notification.h>
+
+#include <bt/bt_settings.h>
+
+#define BT_API_UNLOCK_EVENT (1UL << 0)
+
+typedef enum {
+    BtMessageTypeUpdateStatus,
+    BtMessageTypeUpdateBatteryLevel,
+    BtMessageTypeUpdatePowerState,
+    BtMessageTypePinCodeShow,
+    BtMessageTypeKeysStorageUpdated,
+    BtMessageTypeSetProfile,
+    BtMessageTypeDisconnect,
+    BtMessageTypeForgetBondedDevices,
+} BtMessageType;
+
+typedef union {
+    uint32_t pin_code;
+    uint8_t battery_level;
+    BtProfile profile;
+} BtMessageData;
+
+typedef struct {
+    BtMessageType type;
+    BtMessageData data;
+    bool* result;
+} BtMessage;
+
+struct Bt {
+    uint8_t* bt_keys_addr_start;
+    uint16_t bt_keys_size;
+    uint16_t max_packet_size;
+    BtSettings bt_settings;
+    BtStatus status;
+    BtProfile profile;
+    FuriMessageQueue* message_queue;
+    NotificationApp* notification;
+    Gui* gui;
+    ViewPort* statusbar_view_port;
+    ViewPort* pin_code_view_port;
+    uint32_t pin_code;
+    DialogsApp* dialogs;
+    DialogMessage* dialog_message;
+    Power* power;
+    Rpc* rpc;
+    RpcSession* rpc_session;
+    FuriEventFlag* rpc_event;
+    FuriEventFlag* api_event;
+    BtStatusChangedCallback status_changed_cb;
+    void* status_changed_ctx;
+};