[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_worker_i.h

@@ -0,0 +1,34 @@
+#pragma once
+
+#include "picopass_worker.h"
+#include "picopass_i.h"
+
+#include <furi.h>
+#include <lib/toolbox/stream/file_stream.h>
+
+#include <furi_hal.h>
+
+#include <stdlib.h>
+#include <st25r3916.h>
+#include <rfal_analogConfig.h>
+#include <rfal_rf.h>
+
+#include <platform.h>
+
+struct PicopassWorker {
+    FuriThread* thread;
+    Storage* storage;
+
+    PicopassDeviceData* dev_data;
+    PicopassWorkerCallback callback;
+    void* context;
+
+    PicopassWorkerState state;
+};
+
+void picopass_worker_change_state(PicopassWorker* picopass_worker, PicopassWorkerState state);
+
+int32_t picopass_worker_task(void* context);
+
+void picopass_worker_detect(PicopassWorker* picopass_worker);
+void picopass_worker_write(PicopassWorker* picopass_worker);