[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/gui_i.h

@@ -0,0 +1,88 @@
+/**
+ * @file gui_i.h
+ * GUI: main API internals
+ */
+
+#pragma once
+
+#include "gui.h"
+
+#include <furi.h>
+#include <m-array.h>
+#include <m-algo.h>
+#include <stdio.h>
+
+#include "canvas.h"
+#include "canvas_i.h"
+#include "view_port.h"
+#include "view_port_i.h"
+
+#define GUI_DISPLAY_WIDTH 128
+#define GUI_DISPLAY_HEIGHT 64
+
+#define GUI_STATUS_BAR_X 0
+#define GUI_STATUS_BAR_Y 0
+#define GUI_STATUS_BAR_WIDTH GUI_DISPLAY_WIDTH
+/* 0-1 pixels for upper thin frame
+ * 2-9 pixels for icons (battery, sd card, etc)
+ * 10-12 pixels for lower bold line */
+#define GUI_STATUS_BAR_HEIGHT 13
+/* icon itself area (battery, sd card, etc) excluding frame.
+ * painted 2 pixels below GUI_STATUS_BAR_X.
+ */
+#define GUI_STATUS_BAR_WORKAREA_HEIGHT 8
+
+#define GUI_WINDOW_X 0
+#define GUI_WINDOW_Y GUI_STATUS_BAR_HEIGHT
+#define GUI_WINDOW_WIDTH GUI_DISPLAY_WIDTH
+#define GUI_WINDOW_HEIGHT (GUI_DISPLAY_HEIGHT - GUI_WINDOW_Y)
+
+#define GUI_THREAD_FLAG_DRAW (1 << 0)
+#define GUI_THREAD_FLAG_INPUT (1 << 1)
+#define GUI_THREAD_FLAG_ALL (GUI_THREAD_FLAG_DRAW | GUI_THREAD_FLAG_INPUT)
+
+ARRAY_DEF(ViewPortArray, ViewPort*, M_PTR_OPLIST);
+
+typedef struct {
+    GuiCanvasCommitCallback callback;
+    void* context;
+} CanvasCallbackPair;
+
+ARRAY_DEF(CanvasCallbackPairArray, CanvasCallbackPair, M_POD_OPLIST);
+
+#define M_OPL_CanvasCallbackPairArray_t() ARRAY_OPLIST(CanvasCallbackPairArray, M_POD_OPLIST)
+
+ALGO_DEF(CanvasCallbackPairArray, CanvasCallbackPairArray_t);
+
+/** Gui structure */
+struct Gui {
+    // Thread and lock
+    FuriThreadId thread_id;
+    FuriMutex* mutex;
+
+    // Layers and Canvas
+    bool lockdown;
+    ViewPortArray_t layers[GuiLayerMAX];
+    Canvas* canvas;
+    CanvasCallbackPairArray_t canvas_callback_pair;
+
+    // Input
+    FuriMessageQueue* input_queue;
+    FuriPubSub* input_events;
+    uint8_t ongoing_input;
+    ViewPort* ongoing_input_view_port;
+};
+
+ViewPort* gui_view_port_find_enabled(ViewPortArray_t array);
+
+/** Update GUI, request redraw
+ *
+ * @param      gui   Gui instance
+ */
+void gui_update(Gui* gui);
+
+void gui_input_events_callback(const void* value, void* ctx);
+
+void gui_lock(Gui* gui);
+
+void gui_unlock(Gui* gui);