[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/picopass/picopass_i.h

@@ -0,0 +1,82 @@
+#pragma once
+
+#include "picopass.h"
+#include "picopass_worker.h"
+#include "picopass_device.h"
+
+#include "rfal_picopass.h"
+
+#include <furi.h>
+#include <gui/gui.h>
+#include <gui/view_dispatcher.h>
+#include <gui/scene_manager.h>
+#include <notification/notification_messages.h>
+
+#include <gui/modules/submenu.h>
+#include <gui/modules/popup.h>
+#include <gui/modules/loading.h>
+#include <gui/modules/text_input.h>
+#include <gui/modules/widget.h>
+
+#include <input/input.h>
+
+#include "scenes/picopass_scene.h"
+
+#include <storage/storage.h>
+#include <lib/toolbox/path.h>
+
+#define PICOPASS_TEXT_STORE_SIZE 128
+
+enum PicopassCustomEvent {
+    // Reserve first 100 events for button types and indexes, starting from 0
+    PicopassCustomEventReserved = 100,
+
+    PicopassCustomEventViewExit,
+    PicopassCustomEventWorkerExit,
+    PicopassCustomEventByteInputDone,
+    PicopassCustomEventTextInputDone,
+};
+
+typedef enum {
+    EventTypeTick,
+    EventTypeKey,
+} EventType;
+
+struct Picopass {
+    PicopassWorker* worker;
+    ViewDispatcher* view_dispatcher;
+    Gui* gui;
+    NotificationApp* notifications;
+    SceneManager* scene_manager;
+    PicopassDevice* dev;
+
+    char text_store[PICOPASS_TEXT_STORE_SIZE + 1];
+    string_t text_box_store;
+
+    // Common Views
+    Submenu* submenu;
+    Popup* popup;
+    Loading* loading;
+    TextInput* text_input;
+    Widget* widget;
+};
+
+typedef enum {
+    PicopassViewMenu,
+    PicopassViewPopup,
+    PicopassViewLoading,
+    PicopassViewTextInput,
+    PicopassViewWidget,
+} PicopassView;
+
+Picopass* picopass_alloc();
+
+void picopass_text_store_set(Picopass* picopass, const char* text, ...);
+
+void picopass_text_store_clear(Picopass* picopass);
+
+void picopass_blink_start(Picopass* picopass);
+
+void picopass_blink_stop(Picopass* picopass);
+
+void picopass_show_loading_popup(void* context, bool show);